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authorAndreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>2016-01-25 01:42:23 +0100
committerAndreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>2016-01-25 20:43:34 +0100
commitb46aae093634271931395d65f422f4b2a23112d3 (patch)
tree1f7118bfbb0fb1ba4fcbf7caba4caaf9988630b1
parent8b02af1e6fbb0d782f3561afd82f66edc7fa8ae0 (diff)
downloadffmpeg-b46aae093634271931395d65f422f4b2a23112d3.tar.gz
build: use a link instead of changing current directory when compiling
If links don't work, fall back to using the full source path as was previously done. This should fix build failures with MSVC. Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com> Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
-rw-r--r--.gitignore1
-rw-r--r--Makefile2
-rw-r--r--common.mak7
-rwxr-xr-xconfigure28
-rw-r--r--library.mak2
5 files changed, 27 insertions, 13 deletions
diff --git a/.gitignore b/.gitignore
index 93b0dca40a..9fc0ac269c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,6 +64,7 @@
/libavcodec/*_tables.h
/libavutil/avconfig.h
/libavutil/ffversion.h
+/src
/tests/audiogen
/tests/base64
/tests/checkasm/checkasm
diff --git a/Makefile b/Makefile
index f3bd5f682d..e484249065 100644
--- a/Makefile
+++ b/Makefile
@@ -181,7 +181,7 @@ clean::
distclean::
$(RM) $(DISTCLEANSUFFIXES)
- $(RM) config.* .config libavutil/avconfig.h .version avversion.h version.h libavutil/ffversion.h libavcodec/codec_names.h
+ $(RM) config.* .config libavutil/avconfig.h .version avversion.h version.h libavutil/ffversion.h libavcodec/codec_names.h src
$(RM) -rf doc/examples/pc-uninstalled
config:
diff --git a/common.mak b/common.mak
index 3812149ef5..03b51c5968 100644
--- a/common.mak
+++ b/common.mak
@@ -32,7 +32,7 @@ endif
ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample
# NASM requires -I path terminated with /
-IFLAGS := -I$(DST_PATH)/ -I$(SRC_PATH)/
+IFLAGS := -I. -I$(SRC_LINK)/
CPPFLAGS := $(IFLAGS) $(CPPFLAGS)
CFLAGS += $(ECFLAGS)
CCFLAGS = $(CPPFLAGS) $(CFLAGS)
@@ -43,12 +43,11 @@ CXXFLAGS += $(CPPFLAGS) $(CFLAGS)
YASMFLAGS += $(IFLAGS:%=%/) -Pconfig.asm
HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
-LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)$(DST_PATH)/lib%) $(LDFLAGS)
+LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
define COMPILE
$(call $(1)DEP,$(1))
- $(Q)cd $(SRC_PATH); if [ -n "$(findstring $(SRC_PATH),$<)" ]; then dest=$(subst $(SRC_PATH)/,,$<); else dest=$(DST_PATH)/$<; fi; \
- $(subst @,,$($(1))) $($(1)FLAGS) $($(1)_DEPFLAGS:$(@:.o=.d)=$(DST_PATH)/$(@:.o=.d)) $($(1)_C) $($(1)_O:$@=$(DST_PATH)/$@) $$dest
+ $($(1)) $($(1)FLAGS) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)
endef
COMPILE_C = $(call COMPILE,CC)
diff --git a/configure b/configure
index 0685133975..57b526fce9 100755
--- a/configure
+++ b/configure
@@ -4696,6 +4696,26 @@ case $target_os in
;;
esac
+# test if creating links works
+link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
+link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
+mkdir "$link_dest"
+$ln_s "$link_dest" "$link_name"
+touch "$link_dest/test_file"
+if [ -e "$link_name/test_file" ]; then
+ # create link to source path
+ [ -e src ] && rm src
+ $ln_s "$source_path" src
+ source_link=src
+else
+ # creating directory links doesn't work
+ # fall back to using the full source path
+ source_link="$source_path"
+fi
+# cleanup
+rm -r "$link_dest"
+rm -r "$link_name"
+
# determine libc flavour
probe_libc(){
@@ -6229,12 +6249,6 @@ enabled stripping || strip="echo skipping strip"
config_files="$TMPH config.mak doc/config.texi"
-if enabled msvc; then
- dst_path=$(pwd -W)
-else
- dst_path=$(pwd)
-fi
-
cat > config.mak <<EOF
# Automatically generated by configure - do not modify!
ifndef FFMPEG_CONFIG_MAK
@@ -6250,10 +6264,10 @@ DOCDIR=\$(DESTDIR)$docdir
MANDIR=\$(DESTDIR)$mandir
PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
SRC_PATH=$source_path
+SRC_LINK=$source_link
ifndef MAIN_MAKEFILE
SRC_PATH:=\$(SRC_PATH:.%=..%)
endif
-DST_PATH=$dst_path
CC_IDENT=$cc_ident
ARCH=$arch
INTRINSICS=$intrinsics
diff --git a/library.mak b/library.mak
index 0b23a28f5b..3e1082c572 100644
--- a/library.mak
+++ b/library.mak
@@ -28,7 +28,7 @@ $(SUBDIR)x86/%$(DEFAULT_YASMD).asm: $(SUBDIR)x86/%.asm
$(SUBDIR)x86/%.o: $(SUBDIR)x86/%$(YASMD).asm
$(DEPYASM) $(YASMFLAGS) -I $(<D)/ -M -o $@ $< > $(@:.o=.d)
- $(Q)cd $(SRC_PATH); $(subst @,,$(YASM)) $(YASMFLAGS) -I $(<D)/ -o $(DST_PATH)/$@ $(subst $(SRC_PATH)/,,$<)
+ $(YASM) $(YASMFLAGS) -I $(<D)/ -o $@ $(patsubst $(SRC_PATH)/%,$(SRC_LINK)/%,$<)
-$(if $(ASMSTRIPFLAGS), $(STRIP) $(ASMSTRIPFLAGS) $@)
LIBOBJS := $(OBJS) $(SUBDIR)%.h.o $(TESTOBJS)