Build fails if LTO is enabled: error: function 'f2_HOL_ASL' redeclared as variable

[barracuda156]

[ 97%] Building C object CMakeFiles/asl.dir/src/solvers/x2check.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers -pipe -Os -fopenmp -DNDEBUG -I/opt/local/include -arch ppc -m32 -flto=auto -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-unused-result -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/xectim.c.o -MF CMakeFiles/asl.dir/src/solvers/xectim.c.o.d -o CMakeFiles/asl.dir/src/solvers/xectim.c.o -c /opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers/xectim.c
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers -pipe -Os -fopenmp -DNDEBUG -I/opt/local/include -arch ppc -m32 -flto=auto -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-unused-result -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/x2check.c.o -MF CMakeFiles/asl.dir/src/solvers/x2check.c.o.d -o CMakeFiles/asl.dir/src/solvers/x2check.c.o -c /opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers/x2check.c
[ 98%] Building C object CMakeFiles/asl.dir/src/solvers/xp1known.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers -pipe -Os -fopenmp -DNDEBUG -I/opt/local/include -arch ppc -m32 -flto=auto -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-unused-result -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/xp1known.c.o -MF CMakeFiles/asl.dir/src/solvers/xp1known.c.o.d -o CMakeFiles/asl.dir/src/solvers/xp1known.c.o -c /opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers/xp1known.c
[ 98%] Building C object CMakeFiles/asl.dir/src/solvers/xp2known.c.o
/opt/local/bin/gcc-mp-14 -Dasl_EXPORTS -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build/include -I/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers -pipe -Os -fopenmp -DNDEBUG -I/opt/local/include -arch ppc -m32 -flto=auto -arch ppc -mmacosx-version-min=10.6 -fPIC -Wno-unused-result -Wno-parentheses -MD -MT CMakeFiles/asl.dir/src/solvers/xp2known.c.o -MF CMakeFiles/asl.dir/src/solvers/xp2known.c.o.d -o CMakeFiles/asl.dir/src/solvers/xp2known.c.o -c /opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers/xp2known.c
[ 98%] Linking C shared library bin/libasl.dylib
/opt/local/bin/cmake -E cmake_link_script CMakeFiles/asl.dir/link.txt --verbose=ON
/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers/fgh_read.c:101:15: error: function 'f2_HOL_ASL' redeclared as variable
  101 |  extern char* f_OPHOL;
      |               ^
/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/asl-1.0.0/src/solvers/rops2.c:1019:1: note: previously declared here
 1019 | f_OPHOL(expr *e A_ASL)
      | ^
lto1: fatal error: errors during merging of translation units
compilation terminated.
lto-wrapper: fatal error: /opt/local/bin/gcc-mp-14 returned 1 exit status
compilation terminated.
collect2: fatal error: lto-wrapper returned 1 exit status
compilation terminated.
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make[2]: *** [bin/libasl.dylib] Error 1
make[2]: *** Deleting file `bin/libasl.dylib'
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build'
make[1]: *** [CMakeFiles/asl.dir/all] Error 2
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make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build'
[ 99%] Built target asl2
/opt/local/bin/gcc-mp-14 -pipe -Os -fopenmp -DNDEBUG -I/opt/local/include -arch ppc -m32 -flto=auto -arch ppc -mmacosx-version-min=10.6 -dynamiclib -Wl,-headerpad_max_install_names -L/opt/local/lib -Wl,-headerpad_max_install_names -fopenmp -arch ppc -o bin/libasl2-mt.dylib -install_name /opt/local/lib/libasl2-mt.dylib "CMakeFiles/asl2-mt.dir/include/details.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/asldate.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/atof.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/auxinfo.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/avltree.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/b_search.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/basename.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/bscanf.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/conscale.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/degree.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/derprop.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/dtoa1.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/duthes.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/dynlink.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/eval1.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/eval2.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/ewalloc1.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/ewalloc2.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/f_read.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/fg_read.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/fg_write.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/fpecatch.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/fpinit.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/fullhes.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/func_add.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/funcadd1.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/g_fmt.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/genrowno.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/getenv.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/getstub.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/htcl.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/indic_cons.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/jac0dim.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/jac2dim.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/jacdim.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/jacinc.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/jacinc1.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/libnamsave.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/mach.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/mainexit.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/mip_pri.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/misc.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/mpec_adj.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/mqpcheckv.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/mypow.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/names.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/nl_obj.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/nqpcheck.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/nqpcheckZ.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/obj_adj.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/obj_prec.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/objconst.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/objval_.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/op_type.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/pfghread.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/printf.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/pshvprod.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/punknown.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/qpcheck.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/qpcheckZ.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/qsortv.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/readsol.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/repwhere.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/sigcatch.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/sos_add.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/sphes.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/sscanf.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/stderr.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/studchk0.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/suf_sos.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/value.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/writesol.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/wrtsol_.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/ws_desc.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/wsu_desc.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/xectim.c.o" "CMakeFiles/asl2-mt.dir/src/solvers2/xp2known.c.o"  -Wl,-rpath,/opt/local/lib -lm
make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build'
[ 99%] Built target asl2-mt
make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_ppcports_math_asl/asl/work/build'
make: *** [all] Error 2

Without LTO it builds fine, the rest of the set-up being identical.

[glebbelov]

Please check out latest code. It has in fgh_read.c:

 extern char* f_OPHOL ANSI((expr* A_ASL));

[barracuda156]

@glebbelov I see. I was building the latest release, not the master branch.