X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=Makefile.am;h=e3a4bbdc4eed8a5821ab3f19a7c24a6445480f5b;hb=6c42ce2c7f9c9f2c91170e87029c9c2702a76c6e;hp=cd81be0e3f42363a4e629efef1e45e61e2aa4bbc;hpb=c5a7fbbd654a42b2e9addea9ab035073e5d7a5fd;p=ust.git

diff --git a/Makefile.am b/Makefile.am
index cd81be0..e3a4bbd 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,11 @@
 ACLOCAL_AMFLAGS = -I m4
-SUBDIRS = libust tests libmallocwrap ustd ustctl libinterfork include
+
+# The order here is tricky. SUBDIRS applies both to compilation and
+# installation. Programs depending on the libs must be built after
+# libust and '.' (that contains the linker script). However, '.'
+# must be installed after libust so it can overwrite libust.so with
+# the linker script.
+SUBDIRS = snprintf libustcomm libust . tests libmallocwrap ustd ustctl libinterfork include
 
 EXTRA_DIST = doc libust.ldscript.in libust-initializer.c
 dist_bin_SCRIPTS = usttrace
@@ -7,11 +13,12 @@ dist_bin_SCRIPTS = usttrace
 ldscriptsdir = $(libdir)
 ldscripts_DATA = libust.so libust-initializer.o
 
-CLEANFILES = $(ldscripts_DATA)
+CLEANFILES = $(ldscripts_DATA) ./tests/libust-initializer.Po
 
-libust_FORMAT := $(shell case $(shell uname -m) in (i*86) echo elf32-i386 ;; (x86_64) echo elf64-x86-64 ;; (ppc) echo elf32-powerpc ;; (ppc64) echo elf64-powerpc ;; (s390) echo elf32-s390 ;; (s390x) echo elf64-s390 ;; esac)
 libust.so: libust.ldscript.in
-	$(SED) -e "s@\@FORMAT\@@${libust_FORMAT}@" -e "s@\@PATH\@@${libdir}@g" < $< > $@
+	$(SED) -e "s@\@FORMAT\@@$(LIBFORMAT)@" < $< > $@
 
+# It is very important to compile the initializer with PIC otherwise we
+# may get obscure errors when linking to shared libraries.
 libust-initializer.o: libust-initializer.c
-	$(CC) $(CFLAGS) -c -I$(top_srcdir)/include -o $@ $<
+	$(CC) $(CFLAGS) -fPIC -c -I$(top_srcdir)/include -o $@ $<