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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/runtime_tools/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/runtime_tools/c_src')
| -rw-r--r-- | lib/runtime_tools/c_src/Makefile.in | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/lib/runtime_tools/c_src/Makefile.in b/lib/runtime_tools/c_src/Makefile.in index 840de39f07..73ab6cdc11 100644 --- a/lib/runtime_tools/c_src/Makefile.in +++ b/lib/runtime_tools/c_src/Makefile.in @@ -89,42 +89,31 @@ endif # Targets # ---------------------------------------------------- -debug opt: $(OBJDIR) $(BINDIR) $(SOLIBS) +_create_dirs := $(shell mkdir -p $(OBJDIR) $(LIBDIR)) -$(OBJDIR): - -@mkdir -p $(OBJDIR) - -$(BINDIR): - -@mkdir -p $(BINDIR) +debug opt: $(SOLIBS) $(OBJDIR)/%.o: %.c - $(INSTALL_DIR) $(OBJDIR) $(CC) -c -o $@ $(ALL_CFLAGS) $< $(LIBDIR)/trace_ip_drv.so: $(TRACE_IP_DRV_OBJS) - $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ -lc $(LIBS) $(LIBDIR)/trace_file_drv.so: $(TRACE_FILE_DRV_OBJS) - $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ -lc $(LIBS) $(LIBDIR)/trace_ip_drv.dll: $(TRACE_IP_DRV_OBJS) - $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ $(LIBS) $(LIBDIR)/trace_file_drv.dll: $(TRACE_FILE_DRV_OBJS) - $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ $(LIBS) # # VxWorks is simply to different from Unix in this sense. # Here are the inference rules for VxWorks # $(LIBDIR)/trace_ip_drv.eld: $(TRACE_IP_DRV_OBJS) - $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ $(LIBDIR)/trace_file_drv.eld: $(TRACE_FILE_DRV_OBJS) - $(INSTALL_DIR) $(LIBDIR) $(LD) $(LDFLAGS) -o $@ $^ clean: |