libs: install backward compatibility symlinks

Simplify the switch from uClibc to uClibc-ng.
Apps already built against uClibc-0.9.x.y require .so.0
libs to present on target which in case of current uClibc-ng is
not the case and those apps could not be run.

This change creates symlinks from .so.1 to .so.0 for
most of other libs in the same way as it was done by
23e96d89b6ab "ldso: install backward compatibility symlink by default"

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Waldemar Brodkorb <wbx@uclibc-ng.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Anton Kolesov <akolesov@synopsys.com>

12 files changed, 36 insertions, 0 deletions

diff --git a/ldso/libdl/Makefile.in b/ldso/libdl/Makefile.in
index fe1eb9dab..1ba877071 100644
--- a/ldso/libdl/Makefile.in
+++ b/ldso/libdl/Makefile.in
@@ -48,6 +48,8 @@ objclean-y += CLEAN_ldso/libdl
 
 $(top_builddir)lib/libdl.so: $(libdl_OUT)/libdl_so.a $(libc.depend)
 	$(call link.so,$(libdl_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libdl_FULL_NAME),0)
 
 $(libdl_OUT)/libdl_so.a: $(libdl-so-y)
 	$(Q)$(RM) $@
diff --git a/libc/Makefile.in b/libc/Makefile.in
index 2abc77dce..8ed8a751a 100644
--- a/libc/Makefile.in
+++ b/libc/Makefile.in
@@ -60,9 +60,13 @@ OUTPUT_FORMAT = $(CC) $(CFLAGS) -Wl,--verbose 2>&1 | $(SED) -n '/OUTPUT_FORMAT/,
 ifeq ($(DOMULTI),n)
 $(libc.depend): $(libc_OUT)/libc_so.a $(LIBS-libc.so)
 	$(call link.so,$(libc_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libc_FULL_NAME),0)
 else
 $(libc.depend): $(libc_OUT)/libc.oS $(libc-nomulti-y:.o=.oS) | $(LIBS-libc.so)
 	$(call linkm.so,$(libc_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call linkm.so,$(libc_FULL_NAME),0)
 endif
 	$(Q)$(RM) $@
 	$(Q)cat $(top_srcdir)extra/scripts/format.lds > $@.tmp
diff --git a/libcrypt/Makefile.in b/libcrypt/Makefile.in
index 94753f4ad..94feacb87 100644
--- a/libcrypt/Makefile.in
+++ b/libcrypt/Makefile.in
@@ -46,9 +46,13 @@ else
 $(top_builddir)lib/libcrypt.so: $(libcrypt_OUT)/libcrypt_so.a $(libc.depend)
 endif
 	$(call link.so,$(libcrypt_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libcrypt_FULL_NAME),0)
 else
 $(top_builddir)lib/libcrypt.so: $(libcrypt_OUT)/libcrypt.oS | $(libc.depend)
 	$(call linkm.so,$(libcrypt_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call linkm.so,$(libcrypt_FULL_NAME),0)
 endif
 
 $(libcrypt_OUT)/libcrypt_so.a: $(libcrypt-so-y)
diff --git a/libintl/Makefile.in b/libintl/Makefile.in
index 22ae70cf6..39b39a540 100644
--- a/libintl/Makefile.in
+++ b/libintl/Makefile.in
@@ -48,9 +48,13 @@ else
 $(top_builddir)lib/libintl.so: $(libintl_OUT)/libintl_so.a $(libc.depend)
 endif
 	$(call link.so,$(libintl_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libintl_FULL_NAME),0)
 else
 $(top_builddir)lib/libintl.so: $(libintl_OUT)/libintl.oS | $(libc.depend)
 	$(call linkm.so,$(libintl_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call linkm.so,$(libintl_FULL_NAME),0)
 endif
 
 $(libintl_OUT)/libintl_so.a: $(libintl-so-y)
diff --git a/libm/Makefile.in b/libm/Makefile.in
index 835e7bf3f..2880512db 100644
--- a/libm/Makefile.in
+++ b/libm/Makefile.in
@@ -305,9 +305,13 @@ else
 $(top_builddir)lib/libm.so: $(libm_OUT)/libm_so.a $(libc.depend)
 endif
 	$(call link.so,$(libm_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libm_FULL_NAME),0)
 else
 $(top_builddir)lib/libm.so: $(libm_OUT)/libm.oS | $(libc.depend)
 	$(call linkm.so,$(libm_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call linkm.so,$(libm_FULL_NAME),0)
 endif
 
 $(libm_OUT)/libm_so.a: $(libm-so-y)
diff --git a/libnsl/Makefile.in b/libnsl/Makefile.in
index 333c4907b..e79268c76 100644
--- a/libnsl/Makefile.in
+++ b/libnsl/Makefile.in
@@ -39,6 +39,8 @@ else
 $(top_builddir)lib/libnsl.so: $(libnsl_OUT)/libnsl_so.a $(libc.depend)
 endif
 	$(call link.so,$(libnsl_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libnsl_FULL_NAME),0)
 
 $(libnsl_OUT)/libnsl_so.a: $(libnsl-so-y)
 	$(Q)$(RM) $@
diff --git a/libpthread/linuxthreads/Makefile.in b/libpthread/linuxthreads/Makefile.in
index ffa60c76c..5b7d5596e 100644
--- a/libpthread/linuxthreads/Makefile.in
+++ b/libpthread/linuxthreads/Makefile.in
@@ -69,6 +69,8 @@ lib-so-$(UCLIBC_HAS_THREADS) += $(top_builddir)lib/libpthread.so
 
 $(top_builddir)lib/libpthread.so: $(libpthread_OUT)/libpthread_so.a $(libc.depend)
 	$(call link.so,$(libpthread_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libpthread_FULL_NAME),0)
 
 ifeq ($(PTHREADS_DEBUG_SUPPORT),y)
 $(libpthread_OUT)/libpthread_so.a: STRIP_FLAGS:=$(STRIP_FLAGS:-x=-X --strip-debug)
diff --git a/libpthread/nptl/Makefile.in b/libpthread/nptl/Makefile.in
index 8261fced8..f0d5ad611 100644
--- a/libpthread/nptl/Makefile.in
+++ b/libpthread/nptl/Makefile.in
@@ -76,6 +76,8 @@ lib-so-$(UCLIBC_HAS_THREADS) += $(top_builddir)lib/libpthread.so
 
 $(top_builddir)lib/libpthread.so: $(libpthread_OUT)/libpthread_so.a $(libc.depend) $(libdl.depend) $(top_builddir)lib/libpthread_nonshared.a
 	$(call link.so,$(libpthread_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libpthread_FULL_NAME),0)
 	$(Q)cat $(top_srcdir)extra/scripts/format.lds > $@.tmp
 	$(Q)echo "GROUP ( $(notdir $@).$(ABI_VERSION) libpthread_nonshared.a )" >> $@.tmp
 	$(Q)mv $@.tmp $@
diff --git a/libresolv/Makefile.in b/libresolv/Makefile.in
index fa3c34138..89ef4f791 100644
--- a/libresolv/Makefile.in
+++ b/libresolv/Makefile.in
@@ -39,6 +39,8 @@ else
 $(top_builddir)lib/libresolv.so: $(libresolv_OUT)/libresolv_so.a $(libc.depend)
 endif
 	$(call link.so,$(libresolv_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libresolv_FULL_NAME),0)
 
 $(libresolv_OUT)/libresolv_so.a: $(libresolv-so-y)
 	$(Q)$(RM) $@
diff --git a/librt/Makefile.in b/librt/Makefile.in
index 1536a5cb9..88f15f987 100644
--- a/librt/Makefile.in
+++ b/librt/Makefile.in
@@ -73,6 +73,8 @@ else
 $(top_builddir)lib/librt.so: $(librt_OUT)/librt_so.a $(librt-dep-y)
 endif
 	$(call link.so,$(librt_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(librt_FULL_NAME),0)
 
 $(librt_OUT)/librt_so.a: $(librt-so-y)
 	$(Q)$(RM) $@
diff --git a/libubacktrace/Makefile.in b/libubacktrace/Makefile.in
index 311f1e31c..587eaf69e 100644
--- a/libubacktrace/Makefile.in
+++ b/libubacktrace/Makefile.in
@@ -62,9 +62,13 @@ objclean-y += CLEAN_libubacktrace
 ifeq ($(DOMULTI),n)
 $(top_builddir)lib/libubacktrace.so: $(libubacktrace_OUT)/libubacktrace_so.a $(libdl.depend)
 	$(call link.so,$(libubacktrace_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libubacktrace_FULL_NAME),0)
 else
 $(top_builddir)lib/libubacktrace.so: $(libubacktrace_OUT)/libubacktrace.oS | $(libdl.depend)
 	$(call linkm.so,$(libubacktrace_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call linkm.so,$(libubacktrace_FULL_NAME),0)
 endif
 
 $(libubacktrace_OUT)/libubacktrace_so.a: $(libubacktrace-so-y)
diff --git a/libutil/Makefile.in b/libutil/Makefile.in
index 98b178ef9..7759482f0 100644
--- a/libutil/Makefile.in
+++ b/libutil/Makefile.in
@@ -55,9 +55,13 @@ else
 $(top_builddir)lib/libutil.so: $(libutil_OUT)/libutil_so.a $(libc.depend)
 endif
 	$(call link.so,$(libutil_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call link.so,$(libutil_FULL_NAME),0)
 else
 $(top_builddir)lib/libutil.so: $(libutil_OUT)/libutil.oS | $(libc.depend)
 	$(call linkm.so,$(libutil_FULL_NAME),$(ABI_VERSION))
+	# link for backward compatibility
+	$(call linkm.so,$(libutil_FULL_NAME),0)
 endif
 
 $(libutil_OUT)/libutil_so.a: $(libutil-so-y)