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Make sure JE_CXXFLAGS_ADD uses CPP compiler

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All the invocations of AC_COMPILE_IFELSE inside JE_CXXFLAGS_ADD were
running 'the compiler and compilation flags of the current language'
which was always the C compiler and the CXXFLAGS were never being tested
against a C++ compiler. This patch fixes this issue by temporarily
changing the chosen compiler to C++ by pushing it over the stack and
popping it immediately after the compilation check.
This commit is contained in:
Nehal J Wani 2017-12-31 06:52:33 -06:00 • committed by David Goldblatt
parent 433c2edabc
commit 78a87e4a80
1 changed files with 2 additions and 0 deletions
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2
configure.ac
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@ -76,6 +76,7 @@ AC_MSG_CHECKING([whether compiler supports $1])
T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
JE_APPEND_VS(CONFIGURE_CXXFLAGS, $1)
JE_CONCAT_VVV(CXXFLAGS, CONFIGURE_CXXFLAGS, SPECIFIED_CXXFLAGS)
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
]], [[
@ -87,6 +88,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
AC_MSG_RESULT([no])
[CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"]
)
AC_LANG_POP([C++])
JE_CONCAT_VVV(CXXFLAGS, CONFIGURE_CXXFLAGS, SPECIFIED_CXXFLAGS)
])