ObjFW  Check-in [342edd9a4d]

Overview
Comment:Check for libobjc / libobjfw-rt and abort if not found.
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SHA3-256: 342edd9a4d009079e688eb662412e04589149fa759b41704c6580127087a66f5
User & Date: js on 2011-06-29 19:17:10
Other Links: branch diff | manifest | tags
Context
2011-06-29
21:16
objfw-compile: Pass -f flags to the compiler. check-in: fd3625cbba user: js tags: 0.5
19:17
Check for libobjc / libobjfw-rt and abort if not found. check-in: 342edd9a4d user: js tags: 0.5
2011-06-13
21:28
Fix a typo in README. check-in: af13eba3c0 user: js tags: 0.5
Changes
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Modified configure.ac from [dee248cccc] to [344366ead8].

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])

AC_MSG_CHECKING(whether Objective C compiler supports blocks)
old_OBJCFLAGS="$OBJCFLAGS"
OBJCFLAGS="$OBJCFLAGS -fblocks"
AC_TRY_COMPILE([], [
	int (^foo)(int bar);
	foo = ^(int bar) { return 0; }
], [
	AC_DEFINE(OF_HAVE_BLOCKS, 1, [Compiler support for blocks])
	AC_SUBST(BLOCKS_FLAGS, "-fblocks")
	AC_SUBST(OFBLOCKTESTS_M, "OFBlockTests.m")
	AC_MSG_RESULT(yes)
], [
	AC_MSG_RESULT(no)
	OBJCFLAGS="$old_OBJCFLAGS"
])

AC_CHECK_HEADERS([objfw-rt.h objc/objc.h])

test x"$ac_cv_header_objfw_rt_h" = x"yes" && objc_runtime="ObjFW-RT"


AS_IF([test x"$ac_cv_header_objc_objc_h" = x"yes"], [
	AC_EGREP_CPP(yes, [
		#import <objc/objc.h>
		#ifdef __GNU_LIBOBJC__
		yes
		#endif
	], [








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])

AC_MSG_CHECKING(whether Objective C compiler supports blocks)
old_OBJCFLAGS="$OBJCFLAGS"
OBJCFLAGS="$OBJCFLAGS -fblocks"
AC_TRY_COMPILE([], [
	int (^foo)(int bar);
	foo = ^ (int bar) { return 0; }
], [
	AC_DEFINE(OF_HAVE_BLOCKS, 1, [Compiler support for blocks])
	AC_SUBST(BLOCKS_FLAGS, "-fblocks")
	AC_SUBST(OFBLOCKTESTS_M, "OFBlockTests.m")
	AC_MSG_RESULT(yes)
], [
	AC_MSG_RESULT(no)
	OBJCFLAGS="$old_OBJCFLAGS"
])

AC_CHECK_HEADERS([objfw-rt.h objc/objc.h])

test x"$ac_cv_header_objfw_rt_h" = x"yes" && objc_runtime="ObjFW-RT"

AC_MSG_CHECKING(which Objective C runtime we use)
AS_IF([test x"$ac_cv_header_objc_objc_h" = x"yes"], [
	AC_EGREP_CPP(yes, [
		#import <objc/objc.h>
		#ifdef __GNU_LIBOBJC__
		yes
		#endif
	], [
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		], [
			test x"$objc_runtime" = x"" && objc_runtime="old GNU"
		], [
			objc_runtime="Apple"
		])
	])
])


AC_MSG_CHECKING(which Objective C runtime we use)
case $objc_runtime in
	ObjFW-RT)
		AC_DEFINE(OF_OBJFW_RUNTIME, 1,
			[Whether we use the ObjFW runtime])
		AC_SUBST(GNU_RUNTIME, "-fgnu-runtime")
		OBJCFLAGS="$OBJCFLAGS -fgnu-runtime"


		LIBS="-lobjfw-rt $LIBS"



		;;
	Apple)
		AC_DEFINE(OF_APPLE_RUNTIME, 1,
			[Whether we use the Apple ObjC runtime])


		LIBS="-lobjc $LIBS"



		;;
	GNU)
		AC_DEFINE(OF_GNU_RUNTIME, 1,
			[Whether we use the GNU ObjC runtime])


		LIBS="-lobjc $LIBS"



		;;
	"old GNU")
		AC_DEFINE(OF_OLD_GNU_RUNTIME, 1,
			[Whether we use the old GNU ObjC runtime])


		LIBS="-lobjc $LIBS"



		;;
	*)
		AC_MSG_RESULT(none)
		AC_MSG_ERROR(No ObjC runtime found! Please install ObjFW-RT!)
		;;
esac
AC_MSG_RESULT($objc_runtime)

AC_CHECK_FUNC(objc_getProperty,, [
	AC_DEFINE(NEED_OBJC_PROPERTIES_INIT, 1,
		[Whether objc_properties_init needs to be called])
	AC_SUBST(OBJC_PROPERTIES_M, "objc_properties.m")
])









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		], [
			test x"$objc_runtime" = x"" && objc_runtime="old GNU"
		], [
			objc_runtime="Apple"
		])
	])
])
AC_MSG_RESULT($objc_runtime)


case $objc_runtime in
	ObjFW-RT)
		AC_DEFINE(OF_OBJFW_RUNTIME, 1,
			[Whether we use the ObjFW runtime])
		AC_SUBST(GNU_RUNTIME, "-fgnu-runtime")
		OBJCFLAGS="$OBJCFLAGS -fgnu-runtime"

		AC_CHECK_LIB(objfw-rt, objc_msg_lookup, [
			LIBS="-lobjfw-rt $LIBS"
		], [
			AC_MSG_ERROR([libobjfw-rt not found!])
		])
		;;
	Apple)
		AC_DEFINE(OF_APPLE_RUNTIME, 1,
			[Whether we use the Apple ObjC runtime])

		AC_CHECK_LIB(objc, objc_msgSend, [
			LIBS="-lobjc $LIBS"
		], [
			AC_MSG_ERROR([libobjc not found!])
		])
		;;
	GNU)
		AC_DEFINE(OF_GNU_RUNTIME, 1,
			[Whether we use the GNU ObjC runtime])

		AC_CHECK_LIB(objc, objc_msg_lookup, [
			LIBS="-lobjc $LIBS"
		], [
			AC_MSG_ERROR([libobjc not found!])
		])
		;;
	"old GNU")
		AC_DEFINE(OF_OLD_GNU_RUNTIME, 1,
			[Whether we use the old GNU ObjC runtime])

		AC_CHECK_LIB(objc, objc_msg_lookup, [
			LIBS="-lobjc $LIBS"
		], [
			AC_MSG_ERROR([libobjc not found!])
		])
		;;
	*)
		AC_MSG_RESULT(none)
		AC_MSG_ERROR(No ObjC runtime found! Please install ObjFW-RT!)
		;;
esac


AC_CHECK_FUNC(objc_getProperty,, [
	AC_DEFINE(NEED_OBJC_PROPERTIES_INIT, 1,
		[Whether objc_properties_init needs to be called])
	AC_SUBST(OBJC_PROPERTIES_M, "objc_properties.m")
])
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