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CONFIGURE: Undefine __STRICT_ANSI__ for newlib based platforms

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This allows backends to use non-ANSI functions.
As it was the main reason to not set -ansi on these platforms, add it
back to ensure strict adherence to C++ standard.
This commit is contained in:
Philippe Valembois 2020-05-31 12:58:12 +02:00 committed by Eugene Sandulenko
parent e2d8955e1e
commit a7a11c3fde
1 changed files with 12 additions and 9 deletions
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21
configure vendored
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@ -1786,6 +1786,8 @@ switch)
datarootdir='${prefix}/data'
datadir='${datarootdir}'
docdir='${prefix}/doc'
# Switch SDK has C++11 constructs so we must enable it
_use_cxx11=yes
;;
tizen)
_host_os=tizen
@ -2251,16 +2253,17 @@ if test "$have_gcc" = yes ; then
if test "$_cxx_major" -ge "3" ; then
# Try to use ANSI mode when C++11 is disabled.
if test "$_use_cxx11" = "no" ; then
case $_host_os in
# newlib-based system include files suppress non-C89 function
# declarations under __STRICT_ANSI__
3ds | amigaos* | android | androidsdl | dreamcast | ds | gamecube | mingw* | mint* | n64 | psp | ps2 | ps3 | psp2 | switch | tizen | wii )
;;
*)
append_var CXXFLAGS "-ansi"
;;
esac
append_var CXXFLAGS "-ansi"
fi
case $_host_os in
# newlib-based system include files suppress non-C89 function
# declarations under __STRICT_ANSI__, undefine it
3ds | amigaos* | android | androidsdl | dreamcast | ds | gamecube | mingw* | mint* | n64 | psp | ps2 | ps3 | psp2 | switch | tizen | wii )
append_var CXXFLAGS "-U__STRICT_ANSI__"
;;
*)
;;
esac
append_var CXXFLAGS "-W -Wno-unused-parameter"
add_line_to_config_mk 'HAVE_GCC3 = 1'
add_line_to_config_mk 'CXX_UPDATE_DEP_FLAG = -MMD -MF "$(*D)/$(DEPDIR)/$(*F).d" -MQ "$@" -MP'