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build-sys: test for cxx-11 after AC_USE_SYSTEM_EXTENSIONS

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This avoids the following autoconf warning:
configure.ac:89: warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
../../lib/autoconf/specific.m4:368: AC_USE_SYSTEM_EXTENSIONS is expanded from...
configure.ac:89: the top level
This commit is contained in:
Felipe Sateler 2017-10-13 12:23:37 -03:00 • committed by Tanu Kaskinen
parent 805efbb11c
commit 69fcfa60b5
1 changed files with 1 additions and 1 deletions
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2
configure.ac
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@ -84,9 +84,9 @@ AM_PROG_CC_C_O
# Only required if you want the WebRTC canceller -- no runtime dep on # Only required if you want the WebRTC canceller -- no runtime dep on
# libstdc++ otherwise # libstdc++ otherwise
AC_PROG_CXX AC_PROG_CXX
AX_CXX_COMPILE_STDCXX_11([ext],[optional])
AC_PROG_GCC_TRADITIONAL AC_PROG_GCC_TRADITIONAL
AC_USE_SYSTEM_EXTENSIONS AC_USE_SYSTEM_EXTENSIONS
AX_CXX_COMPILE_STDCXX_11([ext],[optional])
# M4 # M4