[PATCH] src/Makefile.am: switch from absolute to relative paths

[Sergei Trofimovich]

When using absolute paths to .la files automake does not consider them
local libraries and fails to build in dependency order:

Noticed build failure today when built with `make -j16`:

    make[2]: *** No rule to make target '../src/libm17n-core.la', needed by 
'libm17n.la'.  Stop.
    make[2]: *** Waiting for unfinished jobs....

Tested on 15 runs in `make --shuffle` mode. Before the change build
failed in most runs. After the change build survived all 15 runs.

Fixes https://savannah.nongnu.org/bugs/?61377
---
 src/ChangeLog   |  4 ++++
 src/Makefile.am | 16 ++++++++--------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/ChangeLog b/src/ChangeLog
index 1d9fe9f..15c4cc8 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2022-09-16  Sergei Trofimovich  <slyich@gmail.com>
+       * Makefile.am: Switch from absolute to relative paths
+       in .la file dependencies.
+
 2020-03-08  handa  <handa@gnu.org>
 
        * mtext.c: Fix typo.
diff --git a/src/Makefile.am b/src/Makefile.am
index 563de14..5614b6b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -53,7 +53,7 @@ libm17n_la_SOURCES = \
        language.h language.c \
        mlocale.h locale.c \
        m17n.h m17n.c
-libm17n_la_LIBADD = ${top_builddir}/src/libm17n-core.la -ldl
+libm17n_la_LIBADD = libm17n-core.la -ldl
 libm17n_la_LDFLAGS = -export-dynamic ${VINFO}
 
 FLT_SOURCES = \
@@ -61,7 +61,7 @@ FLT_SOURCES = \
        m17n-flt.h m17n-flt.c
 
 libm17n_flt_la_SOURCES = ${FLT_SOURCES}
-libm17n_flt_la_LIBADD = ${top_builddir}/src/libm17n-core.la
+libm17n_flt_la_LIBADD = libm17n-core.la
 libm17n_flt_la_LDFLAGS = -export-dynamic ${VINFO}
 
 GUI_SOURCES = \
@@ -80,7 +80,7 @@ OPTIONAL_LD_FLAGS = \
        @FONTCONFIG_LD_FLAGS@
 
 libm17n_gui_la_SOURCES = ${GUI_SOURCES}
-libm17n_gui_la_LIBADD = ${OPTIONAL_LD_FLAGS} 
${top_builddir}/src/libm17n-core.la ${top_builddir}/src/libm17n.la 
${top_builddir}/src/libm17n-flt.la
+libm17n_gui_la_LIBADD = ${OPTIONAL_LD_FLAGS} libm17n-core.la libm17n.la 
libm17n-flt.la
 libm17n_gui_la_LDFLAGS = -export-dynamic ${VINFO}
 
 if WITH_GUI
@@ -90,11 +90,11 @@ module_LTLIBRARIES = libm17n-X.la libm17n-gd.la
 X_LD_FLAGS = ${X_PRE_LIBS} ${X_LIBS} @X11_LD_FLAGS@ ${X_EXTRA_LIBS}
 
 libm17n_X_la_SOURCES = m17n-X.h m17n-X.c
-libm17n_X_la_LIBADD = ${X_LD_FLAGS} @XFT2_LD_FLAGS@ @FONTCONFIG_LD_FLAGS@ 
${top_builddir}/src/libm17n-core.la ${top_builddir}/src/libm17n.la 
${top_builddir}/src/libm17n-flt.la ${top_builddir}/src/libm17n-gui.la
+libm17n_X_la_LIBADD = ${X_LD_FLAGS} @XFT2_LD_FLAGS@ @FONTCONFIG_LD_FLAGS@ 
libm17n-core.la libm17n.la libm17n-flt.la libm17n-gui.la
 libm17n_X_la_LDFLAGS = -avoid-version -module
 
 libm17n_gd_la_SOURCES = m17n-gd.c
-libm17n_gd_la_LIBADD = @GD_LD_FLAGS@ @FREETYPE_LD_FLAGS@ 
${top_builddir}/src/libm17n-core.la ${top_builddir}/src/libm17n.la 
${top_builddir}/src/libm17n-flt.la ${top_builddir}/src/libm17n-gui.la
+libm17n_gd_la_LIBADD = @GD_LD_FLAGS@ @FREETYPE_LD_FLAGS@ libm17n-core.la 
libm17n.la libm17n-flt.la libm17n-gui.la
 libm17n_gd_la_LDFLAGS = -avoid-version -module
 
 endif
@@ -121,14 +121,14 @@ if MAINTAINER_MODE
 noinst_PROGRAMS = linkcore linkshell linkgui
 
 linkcore_SOURCES = linkcore.c
-linkcore_LDADD = ${top_builddir}/src/libm17n-core.la
+linkcore_LDADD = libm17n-core.la
 linkcore_LDFLAGS = -static
 
 linkshell_SOURCES = linkshell.c
-linkshell_LDADD = ${top_builddir}/src/libm17n.la
+linkshell_LDADD = libm17n.la
 linkshell_LDFLAGS = -static
 
 linkgui_SOURCES = linkgui.c
-linkgui_LDADD = ${top_builddir}/src/libm17n-gui.la
+linkgui_LDADD = libm17n-gui.la
 linkgui_LDFLAGS = -static
 endif
-- 
2.37.2