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elfutils uses the argp family of functions, that isn't available in uClibc. So, we add a dependency on argp-standalone if building with uClibc, and modify elfutils source code to link against argp if needed. Heavily based from work done by Stefan Fröberg, but with many further modifications by Thomas Petazzoni. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
93 lines
3.7 KiB
Diff
93 lines
3.7 KiB
Diff
Allow the usage of an external implementation of the argp functions
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uClibc lack the argp family of functions that glibc has. Therefore, we
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add a check in the configure script to see if argp_parse is available
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in the C library. If not, we look if it is available in the additional
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'argp' library. If so, we link against that library. If not, we error
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out.
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This allows to build elfutils against uClibc with an external argp
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library.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Index: b/configure.ac
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===================================================================
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--- a/configure.ac
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+++ b/configure.ac
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@@ -269,6 +269,13 @@
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enable_progs=yes)
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AM_CONDITIONAL(ENABLE_PROGS, test "$enable_progs" = yes)
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+AC_CHECK_FUNC([argp_parse])
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+if test "$ac_cv_func_argp_parse" != yes; then
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+ AC_CHECK_LIB([argp],[argp_parse],ARGP_LIBS=-largp,
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+ AC_MSG_ERROR([No argp_parse function available.]))
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+fi
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+AC_SUBST(ARGP_LIBS)
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+
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dnl Test for zlib and bzlib, gives ZLIB/BZLIB .am
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dnl conditional and config.h USE_ZLIB/USE_BZLIB #define.
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save_LIBS="$LIBS"
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Index: b/src/Makefile.am
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===================================================================
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--- a/src/Makefile.am
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+++ b/src/Makefile.am
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@@ -98,26 +98,29 @@
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# Buggy old compilers.
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readelf_no_Werror = yes
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-readelf_LDADD = $(libdw) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl
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+readelf_LDADD = $(libdw) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl \
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+ $(ARGP_LIBS)
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nm_LDADD = $(libdw) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl \
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- $(demanglelib)
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-size_LDADD = $(libelf) $(libeu) $(libmudflap)
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-strip_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl
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-ld_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl
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+ $(demanglelib) $(ARGP_LIBS)
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+size_LDADD = $(libelf) $(libeu) $(libmudflap) $(ARGP_LIBS)
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+strip_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl $(ARGP_LIBS)
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+ld_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl $(ARGP_LIBS)
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if NATIVE_LD
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# -ldl is always needed for libebl.
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ld_LDADD += libld_elf.a
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endif
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ld_LDFLAGS = -rdynamic
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-elflint_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl
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-findtextrel_LDADD = $(libdw) $(libelf) $(libmudflap)
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-addr2line_LDADD = $(libdw) $(libelf) $(libmudflap)
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-elfcmp_LDADD = $(libebl) $(libelf) $(libmudflap) -ldl
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-objdump_LDADD = $(libasm) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl
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-ranlib_LDADD = libar.a $(libelf) $(libeu) $(libmudflap)
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-strings_LDADD = $(libelf) $(libeu) $(libmudflap)
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-ar_LDADD = libar.a $(libelf) $(libeu) $(libmudflap)
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-unstrip_LDADD = $(libebl) $(libelf) $(libdw) $(libeu) $(libmudflap) -ldl
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+elflint_LDADD = $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl $(ARGP_LIBS)
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+findtextrel_LDADD = $(libdw) $(libelf) $(libmudflap) $(ARGP_LIBS)
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+addr2line_LDADD = $(libdw) $(libelf) $(libmudflap) $(ARGP_LIBS)
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+elfcmp_LDADD = $(libebl) $(libelf) $(libmudflap) -ldl $(ARGP_LIBS)
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+objdump_LDADD = $(libasm) $(libebl) $(libelf) $(libeu) $(libmudflap) -ldl \
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+ $(ARGP_LIBS)
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+ranlib_LDADD = libar.a $(libelf) $(libeu) $(libmudflap) $(ARGP_LIBS)
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+strings_LDADD = $(libelf) $(libeu) $(libmudflap) $(ARGP_LIBS)
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+ar_LDADD = libar.a $(libelf) $(libeu) $(libmudflap) $(ARGP_LIBS)
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+unstrip_LDADD = $(libebl) $(libelf) $(libdw) $(libeu) $(libmudflap) -ldl \
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+ $(ARGP_LIBS)
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ldlex.o: ldscript.c
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ldlex_no_Werror = yes
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Index: b/libdw/Makefile.am
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===================================================================
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--- a/libdw/Makefile.am
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+++ b/libdw/Makefile.am
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@@ -111,7 +111,7 @@
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-Wl,--enable-new-dtags,-rpath,$(pkglibdir) \
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-Wl,--version-script,$<,--no-undefined \
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-Wl,--whole-archive $(filter-out $<,$^) -Wl,--no-whole-archive\
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- -ldl $(zip_LIBS)
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+ -ldl $(zip_LIBS) $(ARGP_LIBS)
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if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi
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ln -fs $@ $@.$(VERSION)
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