[FFmpeg-cvslog] build: allow non-standard variations of linker -l/-L flags
Mans Rullgard
git at videolan.org
Thu Aug 30 17:37:18 CEST 2012
ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Tue Aug 28 16:06:56 2012 +0100| [8db73c61a7b24bc4f4d3d415bea2990d17d16354] | committer: Mans Rullgard
build: allow non-standard variations of linker -l/-L flags
This enables replacing the -l and -L flags used to specify the
just-built libraries when linking the tools and shared libs with
non-standard syntaxes. System library flags are already handled
by the filtering mechanism in configure.
Signed-off-by: Mans Rullgard <mans at mansr.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8db73c61a7b24bc4f4d3d415bea2990d17d16354
---
Makefile | 2 +-
common.mak | 3 ++-
configure | 9 ++++++++-
libavformat/Makefile | 2 +-
library.mak | 2 +-
5 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/Makefile b/Makefile
index b766e6d..77d51eb 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ CCFLAGS = $(CPPFLAGS) $(CFLAGS)
ASFLAGS := $(CPPFLAGS) $(ASFLAGS)
YASMFLAGS += $(IFLAGS:%=%/) -I$(SRC_PATH)/libavutil/x86/ -Pconfig.asm
HOSTCCFLAGS = $(IFLAGS) $(HOSTCFLAGS)
-LDFLAGS := $(ALLFFLIBS:%=-Llib%) $(LDFLAGS)
+LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
define COMPILE
$(call $(1)DEP,$(1))
diff --git a/common.mak b/common.mak
index 01adfec..d866ef1 100644
--- a/common.mak
+++ b/common.mak
@@ -11,7 +11,8 @@ OBJS += $(OBJS-yes)
FFLIBS := $(FFLIBS-yes) $(FFLIBS)
TESTPROGS += $(TESTPROGS-yes)
-FFEXTRALIBS := $(FFLIBS:%=-l%$(BUILDSUF)) $(EXTRALIBS)
+LDLIBS = $(FFLIBS:%=%$(BUILDSUF))
+FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)
EXAMPLES := $(EXAMPLES:%=$(SUBDIR)%-example$(EXESUF))
OBJS := $(sort $(OBJS:%=$(SUBDIR)%))
diff --git a/configure b/configure
index 32118d0..5e0d76e 100755
--- a/configure
+++ b/configure
@@ -1785,6 +1785,8 @@ CC_C='-c'
CC_E='-E -o $@'
CC_O='-o $@'
LD_O='-o $@'
+LD_LIB='-l%'
+LD_PATH='-L'
HOSTCC_C='-c'
HOSTCC_O='-o $@'
HOSTLD_O='-o $@'
@@ -2132,7 +2134,8 @@ probe_cc(){
pfx=$1
_cc=$2
- unset _type _ident _cc_c _cc_e _cc_o _ld_o _flags _cflags _ldflags
+ unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
+ unset _ld_o _ldflags _ld_lib _ld_path
unset _depflags _DEPCMD _DEPFLAGS
_flags_filter=echo
@@ -2294,6 +2297,8 @@ ldflags_filter=$_flags_filter
add_ldflags $_flags $_ldflags
test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
LD_O=${_ld_o-$LD_O}
+LD_LIB=${_ld_lib-$LD_LIB}
+LD_PATH=${_ld_path-$LD_PATH}
probe_cc hostld "$host_ld"
host_ldflags_filter=$_flags_filter
@@ -3523,6 +3528,8 @@ AS_O=$AS_O
CC_C=$CC_C
CC_O=$CC_O
LD_O=$LD_O
+LD_LIB=$LD_LIB
+LD_PATH=$LD_PATH
DLLTOOL=$dlltool
LDFLAGS=$LDFLAGS
LDFLAGS-avserver=$AVSERVERLDFLAGS
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 82dc1c1..61e1fa1 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -379,4 +379,4 @@ TOOLS = aviocat \
pktdumper \
probetest \
-$(SUBDIR)output-example$(EXESUF): ELIBS = -lswscale
+$(SUBDIR)output-example$(EXESUF): ELIBS = $(patsubst %,$(LD_LIB),swscale)
diff --git a/library.mak b/library.mak
index 165a782..d89050e 100644
--- a/library.mak
+++ b/library.mak
@@ -35,7 +35,7 @@ install-libs-$(CONFIG_SHARED): install-lib$(NAME)-shared
define RULES
$(EXAMPLES) $(TESTPROGS) $(TOOLS): %$(EXESUF): %.o
- $$(LD) $(LDFLAGS) $$(LD_O) $$^ -l$(FULLNAME) $(FFEXTRALIBS) $$(ELIBS)
+ $$(LD) $(LDFLAGS) $$(LD_O) $$^ $(FULLNAME:%=$(LD_LIB)) $(FFEXTRALIBS) $$(ELIBS)
$(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
$(Q)cd ./$(SUBDIR) && $(LN_S) $(SLIBNAME_WITH_MAJOR) $(SLIBNAME)
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