From: Kay Sievers <kay@vrfy.org>
Date: Sat, 9 Apr 2016 18:44:01 +0000 (+0200)
Subject: build: adjust to autotool standards
X-Git-Url: https://git.zarvox.org/shortlog/month?a=commitdiff_plain;h=395e8490c50cffe07cfa5a6835972ef1d826bfc2;p=crbtree.git

build: adjust to autotool standards

https://github.com/bus1/cvariant/commit/9d645c5506148e62483f2870ceb92853899553e6
---

diff --git a/.gitignore b/.gitignore
index e9b5e3b..d6c9477 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,8 +21,8 @@
 /Makefile.in
 /install-tree
 
-/src/crbtree.pc
 /libcrbtree.so.0
+/src/crbtree.pc
 
 /test-api
 /test-basic
diff --git a/Makefile.am b/Makefile.am
index b92aa40..2ba0c28 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -41,42 +41,46 @@ AM_CFLAGS = $(OUR_CFLAGS)
 AM_LDFLAGS = $(OUR_LDFLAGS)
 
 # ------------------------------------------------------------------------------
-# libcrbtree.a
+# library archive
 
 noinst_LIBRARIES += \
 	libcrbtree.a
 
-pkginclude_HEADERS += \
-	src/org.bus1/c-rbtree.h
-
 libcrbtree_a_SOURCES = \
 	src/libcrbtree.sym \
 	src/c-rbtree-private.h \
-	src/c-rbtree.c
+	src/c-rbtree.c \
+	src/org.bus1/c-rbtree.h
 
 # ------------------------------------------------------------------------------
-# libcrbtree.so.0
+# shared library built from archive
+
+all-local: libcrbtree.so.0
+
+pkginclude_HEADERS += \
+	src/org.bus1/c-rbtree.h
 
 libcrbtree.so.0: libcrbtree.a $(top_srcdir)/src/libcrbtree.sym
-	$(AM_V_CCLD)$(CCLD) $(AM_CFLAGS) $(AM_LDFLAGS) \
-	-shared \
+	$(AM_V_CCLD)$(LINK) -shared \
 	-Wl,-soname=$@ \
 	-Wl,--version-script=$(top_srcdir)/src/libcrbtree.sym \
-	-Wl,--whole-archive libcrbtree.a -Wl,--no-whole-archive \
-	-o $@
+	-Wl,--whole-archive libcrbtree.a -Wl,--no-whole-archive
 
 CLEANFILES += \
 	libcrbtree.so.0
 
-all-local: libcrbtree.so.0
-
-install-exec-hook:
-	$(MKDIR_P) $(DESTDIR)$(libdir)
-	cp libcrbtree.so.0 $(DESTDIR)$(libdir)
-	$(AM_V_LN)ln -sf libcrbtree.so.0 $(DESTDIR)$(libdir)/libcrbtree.so
-
-uninstall-hook:
-	rm -f $(DESTDIR)$(libdir)/libcrbtree.so.0
+install-exec-local:
+	@echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+		$(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1
+	@echo " $(INSTALL) libcrbtree.so.0 '$(DESTDIR)$(libdir)'"; \
+		$(INSTALL) libcrbtree.so.0 "$(DESTDIR)$(libdir)" || exit $$?
+	@echo " $(LN_S) -f libcrbtree.so.0 '$(DESTDIR)$(libdir)/libcrbtree.so'"; \
+		$(LN_S) -f libcrbtree.so.0 "$(DESTDIR)$(libdir)/libcrbtree.so" || exit $$?
+
+uninstall-local:
+	@test ! -d "$(DESTDIR)$(libdir)" || \
+		{ echo " ( cd '$(DESTDIR)$(libdir)' && rm -f libcrbtree.so.0 )"; \
+		  rm -f "$(DESTDIR)$(libdir)/libcrbtree.so.0"; }
 
 %.pc: %.pc.in
 	$(AM_V_GEN)$(SED) \
diff --git a/configure.ac b/configure.ac
index 38e8c3d..0f61ce8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,8 +16,9 @@ AC_CONFIG_MACRO_DIR([build/m4])
 AC_CONFIG_HEADERS([build/config.h])
 AC_CONFIG_AUX_DIR([build/build-aux])
 
-# AC_PROG_CC sets default CFLAGS which conflict with our own configuration
+# suppress conflicting defaults
 CFLAGS=${CFLAGS:-""}
+CXXFLAGS=${CXXFLAGS:-""}
 
 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
@@ -29,6 +30,7 @@ AC_DEFINE_UNQUOTED([CANONICAL_HOST], "$host", [Canonical host string.])
 AC_PROG_CC_C99
 AC_PROG_RANLIB
 AC_PROG_SED
+AC_PROG_LN_S
 
 m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])