From 328ef296c62bb96730d7fff68b8bcd29a2943f11 Mon Sep 17 00:00:00 2001 From: Sven Hesse Date: Thu, 2 Jan 2025 15:23:15 +0100 Subject: [PATCH] BUILD: Update toolchain m4 files --- m4/host-cpu-c-abi.m4 | 529 +++++++++++++++++++++++++++++++++++++++++++ m4/iconv.m4 | 185 +++++++++------ m4/lib-ld.m4 | 167 +++++++++----- m4/lib-link.m4 | 216 ++++++++++-------- m4/lib-prefix.m4 | 264 ++++++++++++++------- 5 files changed, 1071 insertions(+), 290 deletions(-) create mode 100644 m4/host-cpu-c-abi.m4 diff --git a/m4/host-cpu-c-abi.m4 b/m4/host-cpu-c-abi.m4 new file mode 100644 index 00000000..ca021d6a --- /dev/null +++ b/m4/host-cpu-c-abi.m4 @@ -0,0 +1,529 @@ +# host-cpu-c-abi.m4 +# serial 18 +dnl Copyright (C) 2002-2024 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. +dnl This file is offered as-is, without any warranty. + +dnl From Bruno Haible and Sam Steingold. + +dnl Sets the HOST_CPU variable to the canonical name of the CPU. +dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its +dnl C language ABI (application binary interface). +dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in +dnl config.h. +dnl +dnl This canonical name can be used to select a particular assembly language +dnl source file that will interoperate with C code on the given host. +dnl +dnl For example: +dnl * 'i386' and 'sparc' are different canonical names, because code for i386 +dnl will not run on SPARC CPUs and vice versa. They have different +dnl instruction sets. +dnl * 'sparc' and 'sparc64' are different canonical names, because code for +dnl 'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code +dnl contains 32-bit instructions, whereas 'sparc64' code contains 64-bit +dnl instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit +dnl mode, but not both. +dnl * 'mips' and 'mipsn32' are different canonical names, because they use +dnl different argument passing and return conventions for C functions, and +dnl although the instruction set of 'mips' is a large subset of the +dnl instruction set of 'mipsn32'. +dnl * 'mipsn32' and 'mips64' are different canonical names, because they use +dnl different sizes for the C types like 'int' and 'void *', and although +dnl the instruction sets of 'mipsn32' and 'mips64' are the same. +dnl * The same canonical name is used for different endiannesses. You can +dnl determine the endianness through preprocessor symbols: +dnl - 'arm': test __ARMEL__. +dnl - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL. +dnl - 'powerpc64': test __BIG_ENDIAN__ vs. __LITTLE_ENDIAN__. +dnl * The same name 'i386' is used for CPUs of type i386, i486, i586 +dnl (Pentium), AMD K7, Pentium II, Pentium IV, etc., because +dnl - Instructions that do not exist on all of these CPUs (cmpxchg, +dnl MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your +dnl assembly language source files use such instructions, you will +dnl need to make the distinction. +dnl - Speed of execution of the common instruction set is reasonable across +dnl the entire family of CPUs. If you have assembly language source files +dnl that are optimized for particular CPU types (like GNU gmp has), you +dnl will need to make the distinction. +dnl See . +AC_DEFUN([gl_HOST_CPU_C_ABI], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([gl_C_ASM]) + AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi], + [case "$host_cpu" in + +changequote(,)dnl + i[34567]86 ) +changequote([,])dnl + gl_cv_host_cpu_c_abi=i386 + ;; + + x86_64 ) + # On x86_64 systems, the C compiler may be generating code in one of + # these ABIs: + # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64. + # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64 + # with native Windows (mingw, MSVC). + # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (defined __x86_64__ || defined __amd64__ \ + || defined _M_X64 || defined _M_AMD64) + int ok; + #else + error fail + #endif + ]])], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __ILP32__ || defined _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=x86_64-x32], + [gl_cv_host_cpu_c_abi=x86_64])], + [gl_cv_host_cpu_c_abi=i386]) + ;; + +changequote(,)dnl + alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] ) +changequote([,])dnl + gl_cv_host_cpu_c_abi=alpha + ;; + + arm* | aarch64 ) + # Assume arm with EABI. + # On arm64 systems, the C compiler may be generating code in one of + # these ABIs: + # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64. + # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32. + # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __aarch64__ + int ok; + #else + error fail + #endif + ]])], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __ILP32__ || defined _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=arm64-ilp32], + [gl_cv_host_cpu_c_abi=arm64])], + [# Don't distinguish little-endian and big-endian arm, since they + # don't require different machine code for simple operations and + # since the user can distinguish them through the preprocessor + # defines __ARMEL__ vs. __ARMEB__. + # But distinguish arm which passes floating-point arguments and + # return values in integer registers (r0, r1, ...) - this is + # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which + # passes them in float registers (s0, s1, ...) and double registers + # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer + # sets the preprocessor defines __ARM_PCS (for the first case) and + # __ARM_PCS_VFP (for the second case), but older GCC does not. + echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c + # Look for a reference to the register d0 in the .s file. + AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1 + if LC_ALL=C grep 'd0,' conftest.$gl_asmext >/dev/null; then + gl_cv_host_cpu_c_abi=armhf + else + gl_cv_host_cpu_c_abi=arm + fi + rm -f conftest* + ]) + ;; + + hppa1.0 | hppa1.1 | hppa2.0* | hppa64 ) + # On hppa, the C compiler may be generating 32-bit code or 64-bit + # code. In the latter case, it defines _LP64 and __LP64__. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef __LP64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=hppa64], + [gl_cv_host_cpu_c_abi=hppa]) + ;; + + ia64* ) + # On ia64 on HP-UX, the C compiler may be generating 64-bit code or + # 32-bit code. In the latter case, it defines _ILP32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifdef _ILP32 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=ia64-ilp32], + [gl_cv_host_cpu_c_abi=ia64]) + ;; + + mips* ) + # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this + # at 32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=mips64], + [# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but + # may later get defined by ), and _MIPS_SIM == _ABIN32. + # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but + # may later get defined by ), and _MIPS_SIM == _ABIO32. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if (_MIPS_SIM == _ABIN32) + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=mipsn32], + [gl_cv_host_cpu_c_abi=mips])]) + ;; + + powerpc* ) + # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD. + # No need to distinguish them here; the caller may distinguish + # them based on the OS. + # On powerpc64 systems, the C compiler may still be generating + # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may + # be generating 64-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __powerpc64__ || defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [# On powerpc64, there are two ABIs on Linux: The AIX compatible + # one and the ELFv2 one. The latter defines _CALL_ELF=2. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined _CALL_ELF && _CALL_ELF == 2 + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=powerpc64-elfv2], + [gl_cv_host_cpu_c_abi=powerpc64]) + ], + [gl_cv_host_cpu_c_abi=powerpc]) + ;; + + rs6000 ) + gl_cv_host_cpu_c_abi=powerpc + ;; + + riscv32 | riscv64 ) + # There are 2 architectures (with variants): rv32* and rv64*. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if __riscv_xlen == 64 + int ok; + #else + error fail + #endif + ]])], + [cpu=riscv64], + [cpu=riscv32]) + # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d. + # Size of 'long' and 'void *': + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ + int ok; + #else + error fail + #endif + ]])], + [main_abi=lp64], + [main_abi=ilp32]) + # Float ABIs: + # __riscv_float_abi_double: + # 'float' and 'double' are passed in floating-point registers. + # __riscv_float_abi_single: + # 'float' are passed in floating-point registers. + # __riscv_float_abi_soft: + # No values are passed in floating-point registers. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __riscv_float_abi_double + int ok; + #else + error fail + #endif + ]])], + [float_abi=d], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __riscv_float_abi_single + int ok; + #else + error fail + #endif + ]])], + [float_abi=f], + [float_abi='']) + ]) + gl_cv_host_cpu_c_abi="${cpu}-${main_abi}${float_abi}" + ;; + + s390* ) + # On s390x, the C compiler may be generating 64-bit (= s390x) code + # or 31-bit (= s390) code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __LP64__ || defined __s390x__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=s390x], + [gl_cv_host_cpu_c_abi=s390]) + ;; + + sparc | sparc64 ) + # UltraSPARCs running Linux have `uname -m` = "sparc64", but the + # C compiler still generates 32-bit code. + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#if defined __sparcv9 || defined __arch64__ + int ok; + #else + error fail + #endif + ]])], + [gl_cv_host_cpu_c_abi=sparc64], + [gl_cv_host_cpu_c_abi=sparc]) + ;; + + *) + gl_cv_host_cpu_c_abi="$host_cpu" + ;; + esac + ]) + + dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same. + HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'` + HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi" + AC_SUBST([HOST_CPU]) + AC_SUBST([HOST_CPU_C_ABI]) + + # This was + # AC_DEFINE_UNQUOTED([__${HOST_CPU}__]) + # AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__]) + # earlier, but KAI C++ 3.2d doesn't like this. + sed -e 's/-/_/g' >> confdefs.h <. +dnl Don't make changes that are incompatible with that documentation! + AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], [ dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. @@ -31,7 +40,7 @@ AC_DEFUN([AM_ICONV_LINK], dnl because if the user has installed libiconv and not disabled its use dnl via --without-libiconv-prefix, he wants to use it. The first dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed. - am_save_CPPFLAGS="$CPPFLAGS" + gl_saved_CPPFLAGS="$CPPFLAGS" AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [ @@ -48,7 +57,7 @@ AC_DEFUN([AM_ICONV_LINK], iconv_close(cd);]])], [am_cv_func_iconv=yes]) if test "$am_cv_func_iconv" != yes; then - am_save_LIBS="$LIBS" + gl_saved_LIBS="$LIBS" LIBS="$LIBS $LIBICONV" AC_LINK_IFELSE( [AC_LANG_PROGRAM( @@ -61,14 +70,14 @@ AC_DEFUN([AM_ICONV_LINK], iconv_close(cd);]])], [am_cv_lib_iconv=yes] [am_cv_func_iconv=yes]) - LIBS="$am_save_LIBS" + LIBS="$gl_saved_LIBS" fi ]) if test "$am_cv_func_iconv" = yes; then AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [ dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11, - dnl Solaris 10. - am_save_LIBS="$LIBS" + dnl Solaris 10, macOS 14.4. + gl_saved_LIBS="$LIBS" if test $am_cv_lib_iconv = yes; then LIBS="$LIBS $LIBICONV" fi @@ -85,8 +94,9 @@ AC_DEFUN([AM_ICONV_LINK], #endif ]], [[int result = 0; - /* Test against AIX 5.1 bug: Failures are not distinguishable from successful - returns. */ + /* Test against AIX 5.1...7.2 bug: Failures are not distinguishable from + successful returns. This is even documented in + */ { iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8"); if (cd_utf8_to_88591 != (iconv_t)(-1)) @@ -105,6 +115,35 @@ AC_DEFUN([AM_ICONV_LINK], iconv_close (cd_utf8_to_88591); } } + /* Test against macOS 14.4 bug: Failures are not distinguishable from + successful returns. + POSIX:2018 says: "The iconv() function shall ... return the number of + non-identical conversions performed." + But here, the conversion always does transliteration (the suffixes + "//TRANSLIT" and "//IGNORE" have no effect, nor does iconvctl()) and + does not report when it does a non-identical conversion. */ + { + iconv_t cd_utf8_to_88591 = iconv_open ("ISO-8859-1", "UTF-8"); + if (cd_utf8_to_88591 != (iconv_t)(-1)) + { + static ICONV_CONST char input[] = "\305\202"; /* LATIN SMALL LETTER L WITH STROKE */ + char buf[10]; + ICONV_CONST char *inptr = input; + size_t inbytesleft = strlen (input); + char *outptr = buf; + size_t outbytesleft = sizeof (buf); + size_t res = iconv (cd_utf8_to_88591, + &inptr, &inbytesleft, + &outptr, &outbytesleft); + /* Here: + With glibc, GNU libiconv (including macOS up to 13): res == (size_t)-1, errno == EILSEQ. + With musl libc, NetBSD 10, Solaris 11: res == 1. + With macOS 14.4: res == 0, output is "l". */ + if (res == 0) + result |= 2; + iconv_close (cd_utf8_to_88591); + } + } /* Test against Solaris 10 bug: Failures are not distinguishable from successful returns. */ { @@ -121,7 +160,7 @@ AC_DEFUN([AM_ICONV_LINK], &inptr, &inbytesleft, &outptr, &outbytesleft); if (res == 0) - result |= 2; + result |= 4; iconv_close (cd_ascii_to_88591); } } @@ -140,7 +179,7 @@ AC_DEFUN([AM_ICONV_LINK], &inptr, &inbytesleft, &outptr, &outbytesleft); if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD) - result |= 4; + result |= 8; iconv_close (cd_88591_to_utf8); } } @@ -160,22 +199,34 @@ AC_DEFUN([AM_ICONV_LINK], &inptr, &inbytesleft, &outptr, &outbytesleft); if ((int)res > 0) - result |= 8; + result |= 16; iconv_close (cd_88591_to_utf8); } } #endif /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is provided. */ - if (/* Try standardized names. */ - iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1) - /* Try IRIX, OSF/1 names. */ - && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1) - /* Try AIX names. */ - && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1) - /* Try HP-UX names. */ - && iconv_open ("utf8", "eucJP") == (iconv_t)(-1)) - result |= 16; + { + /* Try standardized names. */ + iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP"); + /* Try IRIX, OSF/1 names. */ + iconv_t cd2 = iconv_open ("UTF-8", "eucJP"); + /* Try AIX names. */ + iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP"); + /* Try HP-UX names. */ + iconv_t cd4 = iconv_open ("utf8", "eucJP"); + if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1) + && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1)) + result |= 32; + if (cd1 != (iconv_t)(-1)) + iconv_close (cd1); + if (cd2 != (iconv_t)(-1)) + iconv_close (cd2); + if (cd3 != (iconv_t)(-1)) + iconv_close (cd3); + if (cd4 != (iconv_t)(-1)) + iconv_close (cd4); + } return result; ]])], [am_cv_func_iconv_works=yes], , @@ -185,7 +236,7 @@ AC_DEFUN([AM_ICONV_LINK], esac]) test "$am_cv_func_iconv_works" = no || break done - LIBS="$am_save_LIBS" + LIBS="$gl_saved_LIBS" ]) case "$am_cv_func_iconv_works" in *no) am_func_iconv=no am_cv_lib_iconv=no ;; @@ -204,7 +255,7 @@ AC_DEFUN([AM_ICONV_LINK], else dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV dnl either. - CPPFLAGS="$am_save_CPPFLAGS" + CPPFLAGS="$gl_saved_CPPFLAGS" LIBICONV= LTLIBICONV= fi @@ -212,60 +263,62 @@ AC_DEFUN([AM_ICONV_LINK], AC_SUBST([LTLIBICONV]) ]) -dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to -dnl avoid warnings like +dnl Define AM_ICONV using AC_DEFUN_ONCE, in order to avoid warnings like dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required". -dnl This is tricky because of the way 'aclocal' is implemented: -dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN. -dnl Otherwise aclocal's initial scan pass would miss the macro definition. -dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions. -dnl Otherwise aclocal would emit many "Use of uninitialized value $1" -dnl warnings. -m4_define([gl_iconv_AC_DEFUN], - m4_version_prereq([2.64], - [[AC_DEFUN_ONCE( - [$1], [$2])]], - [m4_ifdef([gl_00GNULIB], - [[AC_DEFUN_ONCE( - [$1], [$2])]], - [[AC_DEFUN( - [$1], [$2])]])])) -gl_iconv_AC_DEFUN([AM_ICONV], +AC_DEFUN_ONCE([AM_ICONV], [ AM_ICONV_LINK if test "$am_cv_func_iconv" = yes; then - AC_MSG_CHECKING([for iconv declaration]) - AC_CACHE_VAL([am_cv_proto_iconv], [ - AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[ + AC_CACHE_CHECK([whether iconv is compatible with its POSIX signature], + [gl_cv_iconv_nonconst], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[ #include #include extern #ifdef __cplusplus "C" #endif -#if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); -#else -size_t iconv(); -#endif - ]], - [[]])], - [am_cv_proto_iconv_arg1=""], - [am_cv_proto_iconv_arg1="const"]) - am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) - am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` - AC_MSG_RESULT([ - $am_cv_proto_iconv]) - AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1], - [Define as const if the declaration of iconv() needs const.]) - dnl Also substitute ICONV_CONST in the gnulib generated . - m4_ifdef([gl_ICONV_H_DEFAULTS], - [AC_REQUIRE([gl_ICONV_H_DEFAULTS]) - if test -n "$am_cv_proto_iconv_arg1"; then - ICONV_CONST="const" - fi + ]], + [[]])], + [gl_cv_iconv_nonconst=yes], + [gl_cv_iconv_nonconst=no]) ]) + else + dnl When compiling GNU libiconv on a system that does not have iconv yet, + dnl pick the POSIX compliant declaration without 'const'. + gl_cv_iconv_nonconst=yes + fi + if test $gl_cv_iconv_nonconst = yes; then + iconv_arg1="" + else + iconv_arg1="const" + fi + AC_DEFINE_UNQUOTED([ICONV_CONST], [$iconv_arg1], + [Define as const if the declaration of iconv() needs const.]) + dnl Also substitute ICONV_CONST in the gnulib generated . + m4_ifdef([gl_ICONV_H_DEFAULTS], + [AC_REQUIRE([gl_ICONV_H_DEFAULTS]) + if test $gl_cv_iconv_nonconst != yes; then + ICONV_CONST="const" + fi + ]) + + dnl A summary result, for those packages which want to print a summary at the + dnl end of the configuration. + if test "$am_func_iconv" = yes; then + if test -n "$LIBICONV"; then + am_cv_func_iconv_summary='yes, in libiconv' + else + am_cv_func_iconv_summary='yes, in libc' + fi + else + if test "$am_cv_func_iconv" = yes; then + am_cv_func_iconv_summary='not working, consider installing GNU libiconv' + else + am_cv_func_iconv_summary='no, consider installing GNU libiconv' + fi fi ]) diff --git a/m4/lib-ld.m4 b/m4/lib-ld.m4 index 78ac11a1..e6e16bb0 100644 --- a/m4/lib-ld.m4 +++ b/m4/lib-ld.m4 @@ -1,8 +1,10 @@ -# lib-ld.m4 serial 1006 -dnl Copyright (C) 1996-2003, 2009-2015 Free Software Foundation, Inc. +# lib-ld.m4 +# serial 13 +dnl Copyright (C) 1996-2003, 2009-2024 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. +dnl This file is offered as-is, without any warranty. dnl Subroutines of libtool.m4, dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid @@ -29,7 +31,7 @@ AC_DEFUN([AC_LIB_PROG_LD], AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_ARG_WITH([gnu-ld], - [AS_HELP_STRING([--with-gnu-ld], + [AS_HELP_STRING([[--with-gnu-ld]], [assume the C compiler uses GNU ld [default=no]])], [test "$withval" = no || with_gnu_ld=yes], [with_gnu_ld=no])dnl @@ -47,73 +49,122 @@ if test "${PATH_SEPARATOR+set}" != set; then } fi -ac_prog=ld -if test "$GCC" = yes; then - # Check if gcc -print-prog-name=ld gives a path. +if test -n "$LD"; then + AC_MSG_CHECKING([for ld]) +elif test "$GCC" = yes; then AC_MSG_CHECKING([for ld used by $CC]) - case $host in - *-*-mingw*) - # gcc leaves a trailing carriage return which upsets mingw - ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; - *) - ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; - esac - case $ac_prog in - # Accept absolute paths. - [[\\/]]* | ?:[[\\/]]*) - re_direlt='/[[^/]][[^/]]*/\.\./' - # Canonicalize the pathname of ld - ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'` - while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do - ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` - done - test -z "$LD" && LD="$ac_prog" - ;; - "") - # If it fails, then pretend we aren't using GCC. - ac_prog=ld - ;; - *) - # If it is relative, then search for the first ld in PATH. - with_gnu_ld=unknown - ;; - esac elif test "$with_gnu_ld" = yes; then AC_MSG_CHECKING([for GNU ld]) else AC_MSG_CHECKING([for non-GNU ld]) fi -AC_CACHE_VAL([acl_cv_path_LD], -[if test -z "$LD"; then - acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR - for ac_dir in $PATH; do - IFS="$acl_save_ifs" - test -z "$ac_dir" && ac_dir=. - if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then - acl_cv_path_LD="$ac_dir/$ac_prog" - # Check to see if the program is GNU ld. I'd rather use --version, - # but apparently some variants of GNU ld only accept -v. - # Break only if it was the GNU/non-GNU ld that we prefer. - case `"$acl_cv_path_LD" -v 2>&1 &5 | tr -d '\015'` ;; + *) + acl_output=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $acl_output in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'` + while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do + acl_output=`echo $acl_output | sed "s%$re_direlt%/%"` + done + # Got the pathname. No search in PATH is needed. + acl_cv_path_LD="$acl_output" + ac_prog= + ;; + "") + # If it fails, then pretend we aren't using GCC. + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; esac fi - done - IFS="$acl_save_ifs" -else - acl_cv_path_LD="$LD" # Let the user override the test with a path. -fi]) -LD="$acl_cv_path_LD" + if test -n "$ac_prog"; then + # Search for $ac_prog in $PATH. + acl_saved_IFS="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$acl_saved_IFS" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + acl_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$acl_cv_path_LD" -v 2>&1 = 1.10 to complain if config.rpath is missing. - m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])]) + dnl Complain if config.rpath is missing. + AC_REQUIRE_AUX_FILE([config.rpath]) AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host @@ -187,17 +189,17 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) - dnl Autoconf >= 2.61 supports dots in --with options. - pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[m4_translit(PACK,[.],[_])],PACK)]) dnl By default, look in $includedir and $libdir. use_additional=yes AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" ]) - AC_ARG_WITH(P_A_C_K[-prefix], -[[ --with-]]P_A_C_K[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib - --without-]]P_A_C_K[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], + AC_ARG_WITH(PACK[-prefix], +[[ --with-]]PACK[[-prefix[=DIR] search for ]]PACKLIBS[[ in DIR/include and DIR/lib + --without-]]PACK[[-prefix don't search for ]]PACKLIBS[[ in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no @@ -206,19 +208,25 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" ]) else additional_includedir="$withval/include" additional_libdir="$withval/$acl_libdirstem" - if test "$acl_libdirstem2" != "$acl_libdirstem" \ - && ! test -d "$withval/$acl_libdirstem"; then - additional_libdir="$withval/$acl_libdirstem2" - fi + additional_libdir2="$withval/$acl_libdirstem2" + additional_libdir3="$withval/$acl_libdirstem3" fi fi ]) + if test "X$additional_libdir2" = "X$additional_libdir"; then + additional_libdir2= + fi + if test "X$additional_libdir3" = "X$additional_libdir"; then + additional_libdir3= + fi dnl Search the library and its dependencies in $additional_libdir and - dnl $LDFLAGS. Using breadth-first-seach. + dnl $LDFLAGS. Use breadth-first search. LIB[]NAME= LTLIB[]NAME= INC[]NAME= @@ -272,48 +280,54 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], shrext= fi if test $use_additional = yes; then - dir="$additional_libdir" - dnl The same code as in the loop below: - dnl First look for a shared library. - if test -n "$acl_shlibext"; then - if test -f "$dir/$libname$shrext"; then - found_dir="$dir" - found_so="$dir/$libname$shrext" - else - if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then - ver=`(cd "$dir" && \ - for f in "$libname$shrext".*; do echo "$f"; done \ - | sed -e "s,^$libname$shrext\\\\.,," \ - | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ - | sed 1q ) 2>/dev/null` - if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then - found_dir="$dir" - found_so="$dir/$libname$shrext.$ver" + for additional_libdir_variable in additional_libdir additional_libdir2 additional_libdir3; do + if test "X$found_dir" = "X"; then + eval dir=\$$additional_libdir_variable + if test -n "$dir"; then + dnl The same code as in the loop below: + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then + found_dir="$dir" + found_so="$dir/$libname$shrext" + else + if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then + ver=`(cd "$dir" && \ + for f in "$libname$shrext".*; do echo "$f"; done \ + | sed -e "s,^$libname$shrext\\\\.,," \ + | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ + | sed 1q ) 2>/dev/null` + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then + found_dir="$dir" + found_so="$dir/$libname$shrext.$ver" + fi + else + eval library_names=\"$acl_library_names_spec\" + for f in $library_names; do + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done + fi + fi fi - else - eval library_names=\"$acl_library_names_spec\" - for f in $library_names; do - if test -f "$dir/$f"; then + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then found_dir="$dir" - found_so="$dir/$f" - break + found_a="$dir/$libname.$acl_libext" fi - done + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi fi fi - fi - dnl Then look for a static library. - if test "X$found_dir" = "X"; then - if test -f "$dir/$libname.$acl_libext"; then - found_dir="$dir" - found_a="$dir/$libname.$acl_libext" - fi - fi - if test "X$found_dir" != "X"; then - if test -f "$dir/$libname.la"; then - found_la="$dir/$libname.la" - fi - fi + done fi if test "X$found_dir" = "X"; then for x in $LDFLAGS $LTLIB[]NAME; do @@ -323,7 +337,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dir=`echo "X$x" | sed -e 's/^X-L//'` dnl First look for a shared library. if test -n "$acl_shlibext"; then - if test -f "$dir/$libname$shrext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then found_dir="$dir" found_so="$dir/$libname$shrext" else @@ -333,14 +347,14 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], | sed -e "s,^$libname$shrext\\\\.,," \ | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | sed 1q ) 2>/dev/null` - if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then found_dir="$dir" found_so="$dir/$libname$shrext.$ver" fi else eval library_names=\"$acl_library_names_spec\" for f in $library_names; do - if test -f "$dir/$f"; then + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then found_dir="$dir" found_so="$dir/$f" break @@ -351,7 +365,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], fi dnl Then look for a static library. if test "X$found_dir" = "X"; then - if test -f "$dir/$libname.$acl_libext"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then found_dir="$dir" found_a="$dir/$libname.$acl_libext" fi @@ -377,7 +391,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dnl standard /usr/lib. if test "$enable_rpath" = no \ || test "X$found_dir" = "X/usr/$acl_libdirstem" \ - || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then + || test "X$found_dir" = "X/usr/$acl_libdirstem2" \ + || test "X$found_dir" = "X/usr/$acl_libdirstem3"; then dnl No hardcoding is needed. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else @@ -477,6 +492,13 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], fi additional_includedir="$basedir/include" ;; + */$acl_libdirstem3 | */$acl_libdirstem3/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem3/"'*$,,'` + if test "$name" = '$1'; then + LIB[]NAME[]_PREFIX="$basedir" + fi + additional_includedir="$basedir/include" + ;; esac if test "X$additional_includedir" != "X"; then dnl Potentially add $additional_includedir to $INCNAME. @@ -517,29 +539,31 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dnl Read the .la file. It defines the variables dnl dlname, library_names, old_library, dependency_libs, current, dnl age, revision, installed, dlopen, dlpreopen, libdir. - save_libdir="$libdir" + saved_libdir="$libdir" case "$found_la" in */* | *\\*) . "$found_la" ;; *) . "./$found_la" ;; esac - libdir="$save_libdir" + libdir="$saved_libdir" dnl We use only dependency_libs. for dep in $dependency_libs; do case "$dep" in -L*) - additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` - dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. + dependency_libdir=`echo "X$dep" | sed -e 's/^X-L//'` + dnl Potentially add $dependency_libdir to $LIBNAME and $LTLIBNAME. dnl But don't add it dnl 1. if it's the standard /usr/lib, dnl 2. if it's /usr/local/lib and we are using GCC on Linux, dnl 3. if it's already present in $LDFLAGS or the already dnl constructed $LIBNAME, dnl 4. if it doesn't exist as a directory. - if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ - && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then + if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem2" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem3"; then haveit= - if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ - || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then + if test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem2" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem3"; then if test -n "$GCC"; then case $host_os in linux* | gnu* | k*bsd*-gnu) haveit=yes;; @@ -550,29 +574,29 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], haveit= for x in $LDFLAGS $LIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then + if test "X$x" = "X-L$dependency_libdir"; then haveit=yes break fi done if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LIBNAME. - LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LIBNAME. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$dependency_libdir" fi fi haveit= for x in $LDFLAGS $LTLIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then + if test "X$x" = "X-L$dependency_libdir"; then haveit=yes break fi done if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LTLIBNAME. - LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LTLIBNAME. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$dependency_libdir" fi fi fi @@ -609,7 +633,20 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], ;; -l*) dnl Handle this in the next round. - names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` + dnl But on GNU systems, ignore -lc options, because + dnl - linking with libc is the default anyway, + dnl - linking with libc.a may produce an error + dnl "/usr/bin/ld: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer equality in `/usr/lib/libc.a(strcmp.o)' can not be used when making an executable; recompile with -fPIE and relink with -pie" + dnl or may produce an executable that always crashes, see + dnl . + dep=`echo "X$dep" | sed -e 's/^X-l//'` + if test "X$dep" != Xc \ + || case $host_os in + linux* | gnu* | k*bsd*-gnu) false ;; + *) true ;; + esac; then + names_next_round="$names_next_round $dep" + fi ;; *.la) dnl Handle this in the next round. Throw away the .la's @@ -647,18 +684,18 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" done dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. - acl_save_libdir="$libdir" + acl_saved_libdir="$libdir" libdir="$alldirs" eval flag=\"$acl_hardcode_libdir_flag_spec\" - libdir="$acl_save_libdir" + libdir="$acl_saved_libdir" LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" else dnl The -rpath options are cumulative. for found_dir in $rpathdirs; do - acl_save_libdir="$libdir" + acl_saved_libdir="$libdir" libdir="$found_dir" eval flag=\"$acl_hardcode_libdir_flag_spec\" - libdir="$acl_save_libdir" + libdir="$acl_saved_libdir" LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" done fi @@ -670,7 +707,6 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" done fi - popdef([P_A_C_K]) popdef([PACKLIBS]) popdef([PACKUP]) popdef([PACK]) @@ -721,7 +757,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], dir="$next" dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ - && test "X$dir" != "X/usr/$acl_libdirstem2"; then + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then rpathdirs="$rpathdirs $dir" fi next= @@ -731,7 +768,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ - && test "X$dir" != "X/usr/$acl_libdirstem2"; then + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then rpathdirs="$rpathdirs $dir" fi next= ;; @@ -754,18 +792,18 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], for dir in $rpathdirs; do alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" done - acl_save_libdir="$libdir" + acl_saved_libdir="$libdir" libdir="$alldirs" eval flag=\"$acl_hardcode_libdir_flag_spec\" - libdir="$acl_save_libdir" + libdir="$acl_saved_libdir" $1="$flag" else dnl The -rpath options are cumulative. for dir in $rpathdirs; do - acl_save_libdir="$libdir" + acl_saved_libdir="$libdir" libdir="$dir" eval flag=\"$acl_hardcode_libdir_flag_spec\" - libdir="$acl_save_libdir" + libdir="$acl_saved_libdir" $1="${$1}${$1:+ }$flag" done fi diff --git a/m4/lib-prefix.m4 b/m4/lib-prefix.m4 index ee9ac2e5..cf72a5b4 100644 --- a/m4/lib-prefix.m4 +++ b/m4/lib-prefix.m4 @@ -1,18 +1,13 @@ -# lib-prefix.m4 serial 1007 (gettext-0.18) -dnl Copyright (C) 2001-2005, 2008-2015 Free Software Foundation, Inc. +# lib-prefix.m4 +# serial 23 +dnl Copyright (C) 2001-2005, 2008-2024 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. +dnl This file is offered as-is, without any warranty. dnl From Bruno Haible. -dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and -dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't -dnl require excessive bracketing. -ifdef([AC_HELP_STRING], -[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], -[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) - dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed dnl to access previously installed libraries. The basic assumption is that dnl a user will want packages to use other packages he previously installed @@ -32,9 +27,9 @@ AC_DEFUN([AC_LIB_PREFIX], eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) - AC_LIB_ARG_WITH([lib-prefix], -[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib - --without-lib-prefix don't search for libraries in includedir and libdir], + AC_ARG_WITH([lib-prefix], +[[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib + --without-lib-prefix don't search for libraries in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no @@ -133,10 +128,10 @@ AC_DEFUN([AC_LIB_PREPARE_PREFIX], else acl_final_exec_prefix="$exec_prefix" fi - acl_save_prefix="$prefix" + acl_saved_prefix="$prefix" prefix="$acl_final_prefix" eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" - prefix="$acl_save_prefix" + prefix="$acl_saved_prefix" ]) dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the @@ -144,81 +139,196 @@ dnl variables prefix and exec_prefix bound to the values they will have dnl at the end of the configure script. AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], [ - acl_save_prefix="$prefix" + acl_saved_prefix="$prefix" prefix="$acl_final_prefix" - acl_save_exec_prefix="$exec_prefix" + acl_saved_exec_prefix="$exec_prefix" exec_prefix="$acl_final_exec_prefix" $1 - exec_prefix="$acl_save_exec_prefix" - prefix="$acl_save_prefix" + exec_prefix="$acl_saved_exec_prefix" + prefix="$acl_saved_prefix" ]) dnl AC_LIB_PREPARE_MULTILIB creates -dnl - a variable acl_libdirstem, containing the basename of the libdir, either -dnl "lib" or "lib64" or "lib/64", -dnl - a variable acl_libdirstem2, as a secondary possible value for -dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or -dnl "lib/amd64". +dnl - a function acl_is_expected_elfclass, that tests whether standard input +dn; has a 32-bit or 64-bit ELF header, depending on the host CPU ABI, +dnl - 3 variables acl_libdirstem, acl_libdirstem2, acl_libdirstem3, containing +dnl the basename of the libdir to try in turn, either "lib" or "lib64" or +dnl "lib/64" or "lib32" or "lib/sparcv9" or "lib/amd64" or similar. AC_DEFUN([AC_LIB_PREPARE_MULTILIB], [ - dnl There is no formal standard regarding lib and lib64. - dnl On glibc systems, the current practice is that on a system supporting + dnl There is no formal standard regarding lib, lib32, and lib64. + dnl On most glibc systems, the current practice is that on a system supporting dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under - dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine - dnl the compiler's default mode by looking at the compiler's library search - dnl path. If at least one of its elements ends in /lib64 or points to a - dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. - dnl Otherwise we use the default, namely "lib". + dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. However, on + dnl Arch Linux based distributions, it's the opposite: 32-bit libraries go + dnl under $prefix/lib32 and 64-bit libraries go under $prefix/lib. + dnl We determine the compiler's default mode by looking at the compiler's + dnl library search path. If at least one of its elements ends in /lib64 or + dnl points to a directory whose absolute pathname ends in /lib64, we use that + dnl for 64-bit ABIs. Similarly for 32-bit ABIs. Otherwise we use the default, + dnl namely "lib". dnl On Solaris systems, the current practice is that on a system supporting dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. AC_REQUIRE([AC_CANONICAL_HOST]) - acl_libdirstem=lib - acl_libdirstem2= - case "$host_os" in - solaris*) - dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment - dnl . - dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." - dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the - dnl symlink is missing, so we set acl_libdirstem2 too. - AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], - [AC_EGREP_CPP([sixtyfour bits], [ -#ifdef _LP64 -sixtyfour bits -#endif - ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) - ]) - if test $gl_cv_solaris_64bit = yes; then - acl_libdirstem=lib/64 - case "$host_cpu" in - sparc*) acl_libdirstem2=lib/sparcv9 ;; - i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; - esac - fi - ;; - *) - searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` - if test -n "$searchpath"; then - acl_save_IFS="${IFS= }"; IFS=":" - for searchdir in $searchpath; do - if test -d "$searchdir"; then - case "$searchdir" in - */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; - */../ | */.. ) - # Better ignore directories of this form. They are misleading. - ;; - *) searchdir=`cd "$searchdir" && pwd` - case "$searchdir" in - */lib64 ) acl_libdirstem=lib64 ;; - esac ;; - esac - fi - done - IFS="$acl_save_IFS" - fi - ;; - esac - test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" + AC_REQUIRE([gl_HOST_CPU_C_ABI_32BIT]) + + AC_CACHE_CHECK([for ELF binary format], [gl_cv_elf], + [AC_EGREP_CPP([Extensible Linking Format], + [#if defined __ELF__ || (defined __linux__ && (defined __EDG__ || defined __SUNPRO_C)) + Extensible Linking Format + #endif + ], + [gl_cv_elf=yes], + [gl_cv_elf=no]) + ]) + if test $gl_cv_elf = yes; then + # Extract the ELF class of a file (5th byte) in decimal. + # Cf. https://en.wikipedia.org/wiki/Executable_and_Linkable_Format#File_header + if od -A x < /dev/null >/dev/null 2>/dev/null; then + # Use POSIX od. + func_elfclass () + { + od -A n -t d1 -j 4 -N 1 + } + else + # Use BSD hexdump. + func_elfclass () + { + dd bs=1 count=1 skip=4 2>/dev/null | hexdump -e '1/1 "%3d "' + echo + } + fi + # Use 'expr', not 'test', to compare the values of func_elfclass, because on + # Solaris 11 OpenIndiana and Solaris 11 OmniOS, the result is 001 or 002, + # not 1 or 2. +changequote(,)dnl + case $HOST_CPU_C_ABI_32BIT in + yes) + # 32-bit ABI. + acl_is_expected_elfclass () + { + expr "`func_elfclass | sed -e 's/[ ]//g'`" = 1 > /dev/null + } + ;; + no) + # 64-bit ABI. + acl_is_expected_elfclass () + { + expr "`func_elfclass | sed -e 's/[ ]//g'`" = 2 > /dev/null + } + ;; + *) + # Unknown. + acl_is_expected_elfclass () + { + : + } + ;; + esac +changequote([,])dnl + else + acl_is_expected_elfclass () + { + : + } + fi + + dnl Allow the user to override the result by setting acl_cv_libdirstems. + AC_CACHE_CHECK([for the common suffixes of directories in the library search path], + [acl_cv_libdirstems], + [dnl Try 'lib' first, because that's the default for libdir in GNU, see + dnl . + acl_libdirstem=lib + acl_libdirstem2= + acl_libdirstem3= + case "$host_os" in + solaris*) + dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment + dnl . + dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." + dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the + dnl symlink is missing, so we set acl_libdirstem2 too. + if test $HOST_CPU_C_ABI_32BIT = no; then + acl_libdirstem2=lib/64 + case "$host_cpu" in + sparc*) acl_libdirstem3=lib/sparcv9 ;; + i*86 | x86_64) acl_libdirstem3=lib/amd64 ;; + esac + fi + ;; + netbsd*) + dnl On NetBSD/sparc64, there is a 'sparc' subdirectory that contains + dnl 32-bit libraries. + if test $HOST_CPU_C_ABI_32BIT != no; then + case "$host_cpu" in + sparc*) acl_libdirstem2=lib/sparc ;; + esac + fi + ;; + *) + dnl If $CC generates code for a 32-bit ABI, the libraries are + dnl surely under $prefix/lib or $prefix/lib32, not $prefix/lib64. + dnl Similarly, if $CC generates code for a 64-bit ABI, the libraries + dnl are surely under $prefix/lib or $prefix/lib64, not $prefix/lib32. + dnl Find the compiler's search path. However, non-system compilers + dnl sometimes have odd library search paths. But we can't simply invoke + dnl '/usr/bin/gcc -print-search-dirs' because that would not take into + dnl account the -m32/-m31 or -m64 options from the $CC or $CFLAGS. + searchpath=`(LC_ALL=C $CC $CPPFLAGS $CFLAGS -print-search-dirs) 2>/dev/null \ + | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` + if test $HOST_CPU_C_ABI_32BIT != no; then + # 32-bit or unknown ABI. + if test -d /usr/lib32; then + acl_libdirstem2=lib32 + fi + fi + if test $HOST_CPU_C_ABI_32BIT != yes; then + # 64-bit or unknown ABI. + if test -d /usr/lib64; then + acl_libdirstem3=lib64 + fi + fi + if test -n "$searchpath"; then + acl_saved_IFS="${IFS= }"; IFS=":" + for searchdir in $searchpath; do + if test -d "$searchdir"; then + case "$searchdir" in + */lib32/ | */lib32 ) acl_libdirstem2=lib32 ;; + */lib64/ | */lib64 ) acl_libdirstem3=lib64 ;; + */../ | */.. ) + # Better ignore directories of this form. They are misleading. + ;; + *) searchdir=`cd "$searchdir" && pwd` + case "$searchdir" in + */lib32 ) acl_libdirstem2=lib32 ;; + */lib64 ) acl_libdirstem3=lib64 ;; + esac ;; + esac + fi + done + IFS="$acl_saved_IFS" + if test $HOST_CPU_C_ABI_32BIT = yes; then + # 32-bit ABI. + acl_libdirstem3= + fi + if test $HOST_CPU_C_ABI_32BIT = no; then + # 64-bit ABI. + acl_libdirstem2= + fi + fi + ;; + esac + test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" + test -n "$acl_libdirstem3" || acl_libdirstem3="$acl_libdirstem" + acl_cv_libdirstems="$acl_libdirstem,$acl_libdirstem2,$acl_libdirstem3" + ]) + dnl Decompose acl_cv_libdirstems into acl_libdirstem, acl_libdirstem2, and + dnl acl_libdirstem3. +changequote(,)dnl + acl_libdirstem=`echo "$acl_cv_libdirstems" | sed -e 's/,.*//'` + acl_libdirstem2=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,//' -e 's/,.*//'` + acl_libdirstem3=`echo "$acl_cv_libdirstems" | sed -e 's/^[^,]*,[^,]*,//' -e 's/,.*//'` +changequote([,])dnl ])