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[build] update ax_prog_cc_for_build.m4

http://www.gnu.org/software/autoconf-archive/ax_prog_cc_for_build.html

x-ref:
  "Cross Compile with ptxdist failed for 1.4.59 (1.4.58 works)"
  https://redmine.lighttpd.net/boards/2/topics/9888
master
Glenn Strauss 2 months ago
parent
commit
7386502572
  1. 18
      scripts/m4/ax_prog_cc_for_build.m4

18
scripts/m4/ax_prog_cc_for_build.m4

@ -32,7 +32,7 @@
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 18
#serial 20
AU_ALIAS([AC_PROG_CC_FOR_BUILD], [AX_PROG_CC_FOR_BUILD])
AC_DEFUN([AX_PROG_CC_FOR_BUILD], [dnl
@ -44,6 +44,8 @@ dnl Use the standard macros, but make them use other variable names
dnl
pushdef([ac_cv_prog_CPP], ac_cv_build_prog_CPP)dnl
pushdef([ac_cv_prog_cc_c89], ac_cv_build_prog_cc_c89)dnl
pushdef([ac_cv_prog_cc_c99], ac_cv_build_prog_cc_c99)dnl
pushdef([ac_cv_prog_cc_c11], ac_cv_build_prog_cc_c11)dnl
pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl
pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl
pushdef([ac_cv_prog_cc_cross], ac_cv_build_prog_cc_cross)dnl
@ -83,7 +85,21 @@ AS_IF([test -n "$build"], [ac_build_tool_prefix="$build-"],
[test -n "$build_alias"],[ac_build_tool_prefix="$build_alias-"])
AC_LANG_PUSH([C])
dnl The pushdef([ac_cv_c_compiler_gnu], ...) currently does not cover
dnl the use of this variable in _AC_LANG_COMPILER_GNU called by
dnl AC_PROG_CC. Unset this cache variable temporarily as a workaround.
was_set_ac_cv_c_compiler_gnu=${[ac_cv_c_compiler_gnu]+y}
AS_IF([test ${was_set_ac_cv_c_compiler_gnu}],
[saved_ac_cv_c_compiler_gnu=$[ac_cv_c_compiler_gnu]
AS_UNSET([[ac_cv_c_compiler_gnu]])])
AC_PROG_CC
dnl Restore ac_cv_c_compiler_gnu
AS_IF([test ${was_set_ac_cv_c_compiler_gnu}],
[[ac_cv_c_compiler_gnu]=saved_ac_cv_c_compiler_gnu])
_AC_COMPILER_EXEEXT
_AC_COMPILER_OBJEXT
AC_PROG_CPP

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