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Build: Limit system features to C99 and POSIX 

Use -std=c99 to try and enforce standard compliance.
This commit is contained in:
Daniel Elstner 2015-08-25 12:50:35 +02:00
parent 2d2240bb99
commit e662d9e8e5
2 changed files with 4 additions and 5 deletions
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2
Makefile.am
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@ -29,7 +29,7 @@ if BINDINGS_CXX
local_includes += -Ibindings/cxx/include -I$(srcdir)/bindings/cxx/include -Ibindings/cxx
endif
# Ensure that local include directories are always searched first.
AM_CPPFLAGS = $(local_includes) -DFIRMWARE_DIR='"$(FIRMWARE_DIR)"'
AM_CPPFLAGS = $(local_includes) -D_POSIX_C_SOURCE=200112L -DFIRMWARE_DIR='"$(FIRMWARE_DIR)"'
# The check CFLAGS are a superset of the libsigrok CFLAGS, and the
# python bindings CFLAGS are a superset of the C++ bindings CFLAGS.

7
configure.ac
View File

@ -39,7 +39,6 @@ AH_BOTTOM([#endif /* SR_CONFIG_H */])
# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_LN_S
@ -107,10 +106,10 @@ AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes])
AC_LANG([C])
# Enable the C11 standard if possible, and enforce the use
# Enable the C99 standard if possible, and enforce the use
# of SR_API to explicitly mark all public API functions.
SR_EXTRA_CFLAGS=
SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [C11], [-std=gnu11 -std=c11])
SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [C99], [-std=c99 -c99 -AC99 -qlanglvl=extc99])
SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])
SR_ARG_ENABLE_WARNINGS([SR_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])
@ -258,7 +257,7 @@ AC_ARG_ENABLE([java],
sr_cxx_missing=
# Check if the C++ compiler supports the C++11 standard.
AX_CXX_COMPILE_STDCXX_11(, [optional])
AX_CXX_COMPILE_STDCXX_11([noext], [optional])
AS_IF([test "x$HAVE_CXX11" != x1],
[SR_APPEND([sr_cxx_missing], [', '], ['C++11'])])