X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=85087b5d6c8f5b75c2a06e16748fd7d0580dd491;hb=7a0b98b544ca00f351295f21f895442680b1c014;hp=d3d45d656428037e23d973236183565e37ffcf03;hpb=25609412233a67514fed29b9c87824ad5a00884f;p=libsigrok.git

diff --git a/configure.ac b/configure.ac
index d3d45d65..85087b5d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,9 +33,6 @@ AC_CONFIG_HEADER([config.h])
 AC_CONFIG_MACRO_DIR([autostuff])
 AC_CONFIG_AUX_DIR([autostuff])
 
-# We require this to know the target settings if we're cross-compiling.
-AC_CANONICAL_SYSTEM
-
 # We require at least automake 1.11 (needed for 'silent rules').
 AM_INIT_AUTOMAKE([1.11 -Wall -Werror subdir-objects check-news color-tests])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
@@ -48,7 +45,7 @@ AH_BOTTOM([#endif /* SR_CONFIG_H */])
 # Enable more compiler warnings via -Wall and -Wextra. Add -fvisibility=hidden
 # and enforce use of SR_API to explicitly mark all public API functions.
 COMMON_FLAGS="$CFLAGS -Wall -Wextra -fvisibility=hidden"
-CFLAGS="$COMMON_FLAGS -Wmissing-prototypes"
+CFLAGS="$COMMON_FLAGS -std=c11 -D_POSIX_C_SOURCE=200112L -Wmissing-prototypes"
 CXXFLAGS="-std=c++11 $COMMON_FLAGS"
 
 # Checks for programs.
@@ -276,7 +273,7 @@ PKG_CHECK_MODULES([libzip], [libzip >= 0.10],
 # libserialport is only needed for some hardware drivers. Disable the
 # respective drivers if it is not found.
 if test "x$enable_libserialport" != "xno"; then
-	PKG_CHECK_MODULES([libserialport], [libserialport >= 0.2.0],
+	PKG_CHECK_MODULES([libserialport], [libserialport >= 0.1.1],
 		[have_libserialport="yes"; LIB_CFLAGS="$LIB_CFLAGS $libserialport_CFLAGS";
 		LIBS="$LIBS $libserialport_LIBS";
 		SR_PKGLIBS="$SR_PKGLIBS libserialport"],
@@ -565,7 +562,7 @@ echo "Detected libraries:"
 echo
 
 # Note: This only works for libs with pkg-config integration.
-for lib in "glib-2.0 >= 2.32.0" "libzip >= 0.10" "libserialport >= 0.2.0" \
+for lib in "glib-2.0 >= 2.32.0" "libzip >= 0.10" "libserialport >= 0.1.1" \
 	"librevisa >= 0.0.20130412" "libusb-1.0 >= 1.0.16" "libftdi >= 0.16" \
 	"libftdi1 >= 1.0" "libgpib" "glibmm-2.4 >= 2.32.0" \
 	"pygobject-3.0 >= 3.0.0" "check >= 0.9.4"