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Merge pull request #347 from vowstar/fix-nm 

aclocal.m4: fix issue in cross-compiling
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martinwhitaker 2020-07-30 09:38:22 +01:00 committed by GitHub
parent a2ba8a16b1 d827f674cc
commit 929ffed6ab
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1 changed files with 5 additions and 3 deletions
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8
aclocal.m4 vendored
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@ -23,11 +23,13 @@ AC_SUBST(install_suffix)
# ------------------------------
# Sub-macro for AX_C_UNDERSCORES_LEADING and AX_C_UNDERSCORES_TRAILING.
# Unwarranted assumptions:
# - the object file produced by AC_COMPILE_IFELSE is called "conftest.$ac_objext"
# - the nm(1) utility is available, and its name is "nm".
# - the object file produced by AC_COMPILE_IFELSE is called
# "conftest.$ac_objext"
# - the nm(1) utility or an equivalent is available, and its name
# is defined by the $NM variable.
AC_DEFUN([_AX_C_UNDERSCORES_MATCH_IF],
[AC_COMPILE_IFELSE([AC_LANG_SOURCE([void underscore(void){}])],
[AS_IF([nm conftest.$ac_objext|grep $1 >/dev/null 2>/dev/null],[$2],[$3])],
[AS_IF([$NM conftest.$ac_objext|grep $1 >/dev/null 2>/dev/null],[$2],[$3])],
[AC_MSG_ERROR([underscore test crashed])]
)])