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https://github.com/HDFGroup/hdf5.git
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b5d11111b0
Purpose:
Bug Fix
Description:
The way we were generating Dependencies and .depend files was broken.
If the $srcdir or other macros began with a ".", then it would match
anything and cause problems since it would then overwrite the
beginning of the header file's path.
Solution:
Wrote a Perl script which can handle this type of weirdness better.
It's only used when the environment is a GNU one with a GCC
compiler...
Platforms tested:
Linux
52 lines
2.8 KiB
Makefile
52 lines
2.8 KiB
Makefile
## -*- makefile -*-
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## We keep a list of dependencies in `.depend' for each of the source
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## files on which it depends. When one of the source files is modified
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## we remove its record from .depend and regenerate its dependencies,
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## tacking them onto the end of .depend. By including the .depend file
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## into the makefile, we're telling make that the makefile depends on
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## the dependency list in the .depend file.
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##
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## This is as fast as the `.d' method described in the GNU make manual
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## for automatic dependencies, but has the added advantage that all
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## dependencies are stored in one place. The advantage over the
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## `makedepend' program is that only those files that are out of date
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## have dependency information rebuilt, and the Makefile is not
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## modified.
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##
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## This is also where tracing information is updated. The $(TRACE)
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## program is run on each source file to make sure that the H5TRACE()
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## macros are up to date. If they are then the file is not modified,
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## otherwise the file is changed and a backup is saved by appending a
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## tilde to the file name.
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##
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$(srcdir)/Dependencies: .depend
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@if test "$(srcdir)" != "."; then \
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echo '## This file is machine generated on GNU systems.' >$@; \
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echo '## Only temporary changes may be made here.' >>$@; \
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echo >>$@; \
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$(PERL) -p $(top_srcdir)/bin/distdep .depend >>$@; \
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else \
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echo 'Dependencies cannot be built when $$srcdir == $$builddir'; \
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fi
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.depend: $(LIB_SRC) $(TEST_SRC) $(PROG_SRC)
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@touch .depend
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@for dep in $? dummy; do \
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if test $$dep != "dummy" -a -n "$(PERL)"; then \
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case "$$dep" in \
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*.c) \
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echo Building dependencies for $$dep; \
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obj=`basename $$dep .c`.lo; \
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sed '\%^'"$$obj"':%,\%[^\\]$$%d' <$@ >$@- && mv $@- $@; \
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$(TRACE) $$dep; \
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$(CC) -MM -MG $(CPPFLAGS) $$dep 2>/dev/null >>$@; \
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$(PERL) -w $(top_srcdir)/bin/dependencies --srcdir=$(srcdir) --top_srcdir=$(top_srcdir) --top_builddir=$(top_builddir) $@; \
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;; \
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esac; \
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fi; \
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done
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-include .depend
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