From 81dd6aadefa06530e4faf804c8ca4352c86232c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Tue, 6 Jun 2006 11:52:20 +0000
Subject: added build (and configure) target for compilation as single
 externals (as opposed to 1 big library)

svn path=/trunk/externals/zexy/; revision=5174
---
 src/Make.config.in |  9 +++++++--
 src/Makefile       | 17 +++++++++++++++--
 src/configure.ac   | 24 +++++++++++++++---------
 3 files changed, 37 insertions(+), 13 deletions(-)

diff --git a/src/Make.config.in b/src/Make.config.in
index 2d4797e..6839fcf 100644
--- a/src/Make.config.in
+++ b/src/Make.config.in
@@ -1,5 +1,10 @@
 LIBNAME    =@LIBNAME@
 
+# when build as a library this holds a pre-processor define
+# (e.g. "-DZEXY_LIBRARY")
+# when build as single externals this is empty
+BUILDLIBRARY =@BUILDLIBRARY@
+
 PREFIX     =@prefix@@PDLIBDIR@
 
 INSTALL_BIN=$(PREFIX)/extra
@@ -18,10 +23,10 @@ AFLAGS =
 LFLAGS = @LFLAGS@
 WFLAGS =
 
-TARNAME =  $(LIBNAME)-@ZEXY_VERSION@.tgz
+TARNAME =  $(LIBNAME)-@LIBRARY_VERSION@.tgz
 
 # ICCFLAGS=-march=pentiumiii -axK
-Z_CFLAGS = $(IFLAGS) $(DEFS) -DPD $(WFLAGS) @CFLAGS@ $(CFLAGS)
+Z_CFLAGS = $(IFLAGS) $(DEFS) $(BUILDLIBRARY) -DPD $(WFLAGS) @CFLAGS@ $(CFLAGS)
 
 MAKEDEP_FLAGS = @MAKEDEP_FLAGS@
 
diff --git a/src/Makefile b/src/Makefile
index e0b3c25..60dd75f 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -44,17 +44,30 @@ endif
 
 TARGETS = $(SOURCES:.c=.o)
 
+OBJECTS = $(SOURCES:.c=)
 
+## if $(BUILDLIBRARY) is defined, we build everything as a single library
+## else we build separate externals
+ifneq "$(BUILDLIBRARY)" ""
 all: $(LIBNAME)
 	cp $(LIBNAME).$(EXT) ..
+else
+all: externals
+endif
+
+
+$(OBJECTS): $(TARGETS)
+	$(LD) $(LFLAGS) -o $@.$(EXT) $@.o $(LIBS)
+	$(STRIP) $(STRIPFLAGS) $@.$(EXT)
 
 $(LIBNAME): $(TARGETS) z_zexy.c z_zexy.h
-	$(LD) $(LFLAGS) -o $(LIBNAME).$(EXT) *.o $(LIBS)
-	$(STRIP) $(STRIPFLAGS) $(LIBNAME).$(EXT)
+	$(LD) $(LFLAGS) -o $@.$(EXT) *.o $(LIBS)
+	$(STRIP) $(STRIPFLAGS) $@.$(EXT)
 
 $(TARGETS): %.o : %.c
 	$(CC) $(Z_CFLAGS) -c -o $@ $*.c
 
+externals: $(OBJECTS)
 
 clean:
 	-rm -f *.$(EXT) *.o 
diff --git a/src/configure.ac b/src/configure.ac
index 42b5b9a..e53e6e6 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -16,7 +16,8 @@ AC_SUBST(EXT)
 AC_SUBST(LD)
 AC_SUBST(STRIP)
 AC_SUBST(STRIPFLAGS)
-AC_SUBST(ZEXY_VERSION)
+AC_SUBST(LIBRARY_VERSION)
+AC_SUBST(BUILDLIBRARY)
 AC_SUBST(REFERENCEPATH)
 AC_SUBST(PDLIBDIR)
 AC_SUBST(INCLUDES)
@@ -35,6 +36,8 @@ then
 AC_ARG_ENABLE(bundle, [  --enable-bundleloader   use bundle_loader (default: autodetect)])
 fi
 
+AC_ARG_ENABLE(library,[  --disable-library       split the library into single externals])
+
 if test "x" = "x${enable_PIC}" ; then
  enable_PIC="${with_PIC}"
 fi
@@ -51,6 +54,12 @@ if test "x" = "x${enable_bundle}" ; then
  enable_bundle="${with_bundle}"
 fi
 
+if test "xno" != "x${enable_library}" ; then
+dnl LATER: find a more generic way to generate the .._LIBRARY define
+ BUILDLIBRARY="-DZEXY_LIBRARY"
+fi
+
+
 dnl Checks for libraries.
 dnl Replace `main' with a function in -lc:
 AC_CHECK_LIB(c, main)
@@ -184,9 +193,6 @@ fi
 dnl STRIP=${STRIP:=strip}
 
 
-DFLAGS="-DZEXY_LIBRARY"
-
-
 dnl Checks for pd-version, to set the correct help-path
 AC_MSG_CHECKING("pd\>=0.37")
 
@@ -237,7 +243,7 @@ AC_MSG_CHECKING("zexy-version")
 if test "$with_version" != ""
 then
   echo -n "($with_version)...forced "
-  ZEXY_VERSION="$with_version"
+  LIBRARY_VERSION="$with_version"
 else
  if test "x$cross_compiling" = "xno"
  then
@@ -252,14 +258,14 @@ EOF
 
   if $CC $INCLUDES $DFLAGS -o conftest.o conftest.c > /dev/null 2>&1
   then
-   ZEXY_VERSION=`./conftest.o`
-   echo "$ZEXY_VERSION"
+   LIBRARY_VERSION=`./conftest.o`
+   echo "$LIBRARY_VERSION"
   else
-   ZEXY_VERSION="X"
+   LIBRARY_VERSION="X"
    echo "(unknown)"
   fi
  else
-   ZEXY_VERSION="X"
+   LIBRARY_VERSION="X"
    echo "(X)"
  fi
 fi
-- 
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