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r15224: Check whether -MT is actually supported by the compiler before using

automatic dependencies
(This used to be commit 6598efc6b302984d0b26b0c76a4b7107f5feba21)
This commit is contained in:
Jelmer Vernooij 2006-04-24 22:50:19 +00:00 committed by Gerald (Jerry) Carter
parent 82f1955314
commit 847e80dee9
3 changed files with 4 additions and 3 deletions

View File

@ -216,11 +216,12 @@ if test "x$GNU_MAKE" = x"yes"; then
AC_SUBST(GNU_MAKE_VERSION)
fi
automatic_dependencies=no
AC_MSG_CHECKING([for GNU make >= 3.81])
if test x$GNU_MAKE = x"yes"; then
if $PERL -e " \$_ = '$GNU_MAKE_VERSION'; s/@<:@^\d\.@:>@.*//g; exit (\$_ < 3.81);"; then
automatic_dependencies=yes
AX_CXXFLAGS_GCC_OPTION(-MT, [], [automatic_dependencies=yes], [])
fi
fi
AC_MSG_RESULT($automatic_dependencies)

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@ -45,7 +45,7 @@
#endif
#ifndef PRINTF_ATTRIBUTE
#if !defined(NO_PRINTF_ATTRIBUTE) && (__GNUC__ >= 3)
#if __GNUC__ >= 3
/** Use gcc attribute to check printf fns. a1 is the 1-based index of
* the parameter containing the format, and a2 the index of the first
* argument. Note that some gcc 2.x versions don't handle this

View File

@ -109,7 +109,7 @@ int vasprintf(char **ptr, const char *format, va_list ap);
#endif
#ifndef PRINTF_ATTRIBUTE
#if !defined(NO_PRINTF_ATTRIBUTE) && (__GNUC__ >= 3)
#if __GNUC__ >= 3
/** Use gcc attribute to check printf fns. a1 is the 1-based index of
* the parameter containing the format, and a2 the index of the first
* argument. Note that some gcc 2.x versions don't handle this