m4/fp_prog_ld_filelist.m4

   1 # FP_PROG_LD_FILELIST
   2 # -------------------
   3 # Sets the output variable LdHasFilelist to YES if ld supports
   4 # -filelist, or NO otherwise.
   5 AC_DEFUN([FP_PROG_LD_FILELIST],
   6 [
   7 AC_CACHE_CHECK([whether ld understands -filelist], [fp_cv_ld_has_filelist],
   8 [
   9     echo 'int foo() { return 0; }' > conftest1.c
  10     echo 'int bar() { return 0; }' > conftest2.c
  11     ${CC-cc} -c conftest1.c
  12     ${CC-cc} -c conftest2.c
  13     echo conftest1.o  > conftest.o-files
  14     echo conftest2.o >> conftest.o-files
  15     if $LD -r -filelist conftest.o-files -o conftest.o > /dev/null 2>&1
  16     then
  17         fp_cv_ld_has_filelist=yes
  18     else
  19         fp_cv_ld_has_filelist=no
  20     fi
  21     rm -rf conftest*
  22 ])
  23 FP_CAPITALIZE_YES_NO(["$fp_cv_ld_has_filelist"], [LdHasFilelist])
  24 AC_SUBST([LdHasFilelist])
  25 ])# FP_PROG_LD_FILELIST