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| author | Björn Gustavsson <[email protected]> | 2011-06-29 08:09:21 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2011-08-08 11:59:11 +0200 |
| commit | 8d3a2dfa646ab2ceb41905c673adb15e57bf9cfd (patch) | |
| tree | b27c6d43f8c61eab0069d6f6466cee6d78d149d5 /lib/asn1/c_src | |
| parent | 13cc114325d31626a84fbecbe07bb0f76c3726cf (diff) | |
| download | otp-8d3a2dfa646ab2ceb41905c673adb15e57bf9cfd.tar.gz otp-8d3a2dfa646ab2ceb41905c673adb15e57bf9cfd.tar.bz2 otp-8d3a2dfa646ab2ceb41905c673adb15e57bf9cfd.zip | |
*/c_src/Makefile*: Support parallel make
Create directories first, not within implicit rules. If two
'install' instances runs at the same time attempting to create
a directory, one of them may fail with an "File exists" error.
I tried to use order-only prerequisites to create the directories,
but run into two problems: First, order-only prerequisites are
only implemented in Make 3.80 and later. Second, on a computer
running Solaris/Intel 2.8 (with Make 3.80), order-only prerequisites
seemed to work like ordinary prerequisites, causing targets to
be re-built if the timestamp for the directory changed.
Therefore, using a shell command to run mkdir seems to be the
more portable solution.
Diffstat (limited to 'lib/asn1/c_src')
| -rw-r--r-- | lib/asn1/c_src/Makefile | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/lib/asn1/c_src/Makefile b/lib/asn1/c_src/Makefile index 9e9cb18524..2e3c61dc1d 100644 --- a/lib/asn1/c_src/Makefile +++ b/lib/asn1/c_src/Makefile @@ -87,7 +87,9 @@ endif # Targets # ---------------------------------------------------- -opt: $(OBJDIR) $(LIBDIR) $(SHARED_OBJ_FILES) +_create_dirs := $(shell mkdir -p $(OBJDIR) $(LIBDIR)) + +opt: $(SHARED_OBJ_FILES) debug: opt @@ -109,14 +111,6 @@ $(OBJ_FILES): $(C_FILES) $(SHARED_OBJ_FILES): $(OBJ_FILES) $(LD) $(LDFLAGS) $(LD_INCL_EI) -o $(SHARED_OBJ_FILES) $(OBJ_FILES) $(LD_EI) $(CLIB_FLAGS) $(LIBS) -$(LIBDIR): - -mkdir -p $(LIBDIR) - -$(OBJDIR): - -mkdir -p $(OBJDIR) - - - # ---------------------------------------------------- # Release Target # ---------------------------------------------------- |