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From: Sven Verdoolaege <sven.verdoolaege@gmail.com>
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Date: Mon, 6 Jun 2022 12:56:02 +0000 (+0200)
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Subject: update m4/ax_prog_cc_for_build.m4
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X-Git-Tag: isl-0.25~11
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X-Git-Url: https://repo.or.cz/isl.git/commitdiff_plain/b4dcdfadc29a6c9f410a72f345f3f32725b1d38b
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update m4/ax_prog_cc_for_build.m4
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In particular, update to the latest version from the autoconf archive,
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but preserve the changes from isl-0.22.1-358-gcd42abdf2
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(m4/ax_prog_cc_for_build.m4: do not override host compiler dependency style,
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Tue Jun 9 10:54:10 2020 +0200).
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Signed-off-by: Sven Verdoolaege <sven.verdoolaege@gmail.com>
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--- isl-0.24/m4/ax_prog_cc_for_build.m4.jj 2021-03-02 12:07:09.000000000 +0100
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+++ isl-0.24/m4/ax_prog_cc_for_build.m4 2022-12-20 18:11:18.855777817 +0100
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@@ -32,7 +32,7 @@
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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-#serial 18
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+#serial 21
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AU_ALIAS([AC_PROG_CC_FOR_BUILD], [AX_PROG_CC_FOR_BUILD])
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AC_DEFUN([AX_PROG_CC_FOR_BUILD], [dnl
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@@ -44,6 +44,8 @@ dnl Use the standard macros, but make th
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dnl
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pushdef([ac_cv_prog_CPP], ac_cv_build_prog_CPP)dnl
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pushdef([ac_cv_prog_cc_c89], ac_cv_build_prog_cc_c89)dnl
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+pushdef([ac_cv_prog_cc_c99], ac_cv_build_prog_cc_c99)dnl
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+pushdef([ac_cv_prog_cc_c11], ac_cv_build_prog_cc_c11)dnl
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pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl
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pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl
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pushdef([ac_cv_prog_cc_cross], ac_cv_build_prog_cc_cross)dnl
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@@ -86,7 +88,21 @@ AS_IF([test -n "$build"], [ac_build
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[test -n "$build_alias"],[ac_build_tool_prefix="$build_alias-"])
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AC_LANG_PUSH([C])
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+
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+dnl The pushdef([ac_cv_c_compiler_gnu], ...) currently does not cover
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+dnl the use of this variable in _AC_LANG_COMPILER_GNU called by
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+dnl AC_PROG_CC. Unset this cache variable temporarily as a workaround.
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+was_set_c_compiler_gnu=${[ac_cv_c_compiler_gnu]+y}
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+AS_IF([test ${was_set_c_compiler_gnu}],
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+ [saved_c_compiler_gnu=$[ac_cv_c_compiler_gnu]
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+ AS_UNSET([[ac_cv_c_compiler_gnu]])])
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+
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AC_PROG_CC
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+
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+dnl Restore ac_cv_c_compiler_gnu
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+AS_IF([test ${was_set_c_compiler_gnu}],
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+ [[ac_cv_c_compiler_gnu]=$[saved_c_compiler_gnu]])
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+
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_AC_COMPILER_EXEEXT
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_AC_COMPILER_OBJEXT
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AC_PROG_CPP
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--- isl-0.24/configure.jj 2021-04-26 11:13:19.000000000 +0200
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+++ isl-0.24/configure 2022-12-20 18:11:36.882518568 +0100
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@@ -5002,6 +4990,13 @@ ac_compile='$CC_FOR_BUILD -c $CFLAGS_FOR
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ac_link='$CC_FOR_BUILD -o conftest$ac_build_exeext $CFLAGS_FOR_BUILD $CPPFLAGS_FOR_BUILD $LDFLAGS_FOR_BUILD conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_build_c_compiler_gnu
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+
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+was_set_c_compiler_gnu=${ac_cv_c_compiler_gnu+y}
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+if test ${was_set_c_compiler_gnu}; then :
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+ saved_c_compiler_gnu=$ac_cv_c_compiler_gnu
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+ { ac_cv_c_compiler_gnu=; unset ac_cv_c_compiler_gnu;}
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+fi
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+
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ac_ext=c
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ac_cpp='$CPP_FOR_BUILD $CPPFLAGS_FOR_BUILD'
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ac_compile='$CC_FOR_BUILD -c $CFLAGS_FOR_BUILD $CPPFLAGS_FOR_BUILD conftest.$ac_ext >&5'
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@@ -5728,6 +5723,11 @@ else
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fi
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+
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+if test ${was_set_c_compiler_gnu}; then :
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+ ac_cv_c_compiler_gnu=$saved_c_compiler_gnu
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+fi
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+
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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