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Comment:Update configure script to check compiler flags during linking
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SHA3-256: 01719ee8de7fe009a5f89b39c5d3372d9997b0d1e0afb76661fd0561bf892cf6
User & Date: rkeene on 2019-11-12 17:36:33
Other Links: manifest | tags
References
2019-11-14
00:56 • Fixed ticket [d51fd4f49a]: error in configure on Solaris 11.3 with developerstudio12.5 "cc" plus 6 other changes artifact: 0dfe61fbfc user: rkeene
Context
2019-11-12
17:46
Makefile cleanup check-in: b9af6e4772 user: rkeene tags: trunk
17:36
Update configure script to check compiler flags during linking check-in: 01719ee8de user: rkeene tags: trunk
2019-09-20
18:23
Updated to indicate that OpenSSL/LibreSSL are required to build and use check-in: 0aa88d2997 user: rkeene tags: trunk
Changes
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Modified aclocal/ax_check_compile_flag.m4 from [80cde85a08] to [0974cae407].

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#   success/failure.
#
#   If EXTRA-FLAGS is defined, it is added to the current language's default
#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
#   force the compiler to issue an error when a bad flag is given.
#
#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
#   INPUT gives an alternative input source to AC_LINK_IFELSE.
#
#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
#   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
#
# LICENSE
#
#   Copyright (c) 2008 Guido U. Draheim <[email protected]>
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AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
  ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
  AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
  AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
    [AS_VAR_SET(CACHEVAR,[yes])],
    [AS_VAR_SET(CACHEVAR,[no])])
  _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
  [m4_default([$2], :)],
  [m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS

Modified autogen.sh from [6c19085661] to [825e8c0a23].

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automake --add-missing --copy --force-missing >/dev/null 2>/dev/null
if ! [ -f install-sh -o -f install.sh -o -f shtool ]; then
	echo "automake failed" >&2
	exit 1
fi

autoconf

if grep AC_COMPILE_IFELSE aclocal/ax_check_compile_flag.m4 >/dev/null; then
	sed 's@AC_COMPILE_IFELSE@AC_LINK_IFELSE@g' aclocal/ax_check_compile_flag.m4 > aclocal/ax_check_compile_flag.m4.new
	mv aclocal/ax_check_compile_flag.m4.new aclocal/ax_check_compile_flag.m4
fi

rm -rf autom4te.cache

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