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[libpng16] Reformatted the new code in configure.ac

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Glenn Randers-Pehrson 2016-03-15 07:55:41 -05:00
parent 12e63e91af
commit 46861bc41e
3 changed files with 18 additions and 11 deletions
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5
ANNOUNCE
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@ -1,4 +1,4 @@
Libpng 1.6.22beta04 - March 9, 2016 Libpng 1.6.22beta04 - March 15, 2016
This is not intended to be a public release. It will be replaced This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version. within a few weeks by a public version or by another test version.
@ -77,7 +77,8 @@ Version 1.6.22beta03 [March 9, 2016]
meaningful fashion (John Bowler). meaningful fashion (John Bowler).
Fixed some misleading indentation (Krishnaraj Bhat). Fixed some misleading indentation (Krishnaraj Bhat).
Version 1.6.22beta04 [March 9, 2016] Version 1.6.22beta04 [March 15, 2016]
Force GCC compilation to C89 if needed (Dagobert Michelsen).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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3
CHANGES
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@ -5537,7 +5537,8 @@ Version 1.6.22beta03 [March 9, 2016]
meaningful fashion (John Bowler). meaningful fashion (John Bowler).
Fixed some misleading indentation (Krishnaraj Bhat). Fixed some misleading indentation (Krishnaraj Bhat).
Version 1.6.22beta04 [March 9, 2016] Version 1.6.22beta04 [March 15, 2016]
Force GCC compilation to C89 if needed (Dagobert Michelsen).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

21
configure.ac
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@ -117,15 +117,20 @@ AC_ARG_ENABLE(werror,
# For GCC 5 the default mode for C is -std=gnu11 instead of -std=gnu89 # For GCC 5 the default mode for C is -std=gnu11 instead of -std=gnu89
# In pngpriv.h we request just the POSIX 1003.1 and C89 APIs by defining _POSIX_SOURCE to 1 # In pngpriv.h we request just the POSIX 1003.1 and C89 APIs by defining _POSIX_SOURCE to 1
# This is incompatible with the new default mode, so we test for that and force the # This is incompatible with the new default mode, so we test for that and force the
# "-std=c89" compiler option:
AC_MSG_CHECKING([if we need to force back C standard to C89]) AC_MSG_CHECKING([if we need to force back C standard to C89])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#define _POSIX_SOURCE 1 AC_COMPILE_IFELSE(
#include <stdio.h> [AC_LANG_PROGRAM([
])],AC_MSG_RESULT(no),[ [#define _POSIX_SOURCE 1]
if test "x$GCC" != "xyes"; then [#include <stdio.h>]
AC_MSG_ERROR([Forcing back to C89 is required but the flags are unknown for other compilers than GCC]) ])],
fi AC_MSG_RESULT(no),[
AC_MSG_RESULT(yes) if test "x$GCC" != "xyes"; then
CFLAGS="$CFLAGS -std=c89" AC_MSG_ERROR(
[Forcing back to C89 is required but the flags are only known for GCC])
fi
AC_MSG_RESULT(yes)
CFLAGS="$CFLAGS -std=c89"
]) ])
# Checks for header files. # Checks for header files.