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Christian Persch authored
This fixes these autoconf warnings: Running aclocal-1.11... configure.in:195: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body ../../lib/autoconf/lang.m4:194: AC_LANG_CONFTEST is expanded from... ../../lib/autoconf/general.m4:2591: _AC_COMPILE_IFELSE is expanded from... ../../lib/autoconf/general.m4:2607: AC_COMPILE_IFELSE is expanded from... configure.in:140: VTE_CC_TRY_FLAG is expanded from... ../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from... ../../lib/autoconf/general.m4:2032: AC_CACHE_VAL is expanded from... ../../lib/autoconf/general.m4:2053: AC_CACHE_CHECK is expanded from... configure.in:195: the top level [etc] Should also fix detection of non-support for -fno-common in sun cc, https://bugzilla.gnome.org/show_bug.cgi?id=616001 . (cherry picked from commit e2266006)
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