Makefile is getting out of hand. Use GNU tools' config.guess to obtain

the canonical system name and include the corresponding Makefile snippet
from config/.  config.guess has been written with portability in mind,
so it should work properly on all supported systems.  Should its licence
(GPL) become a problem, it can be replaced with a simpler script that
supports only the systems we know something about.

Adding support for a new system is just a matter of running
config/config.guess and writing the matching config/Makefile.$system
file.


git-svn-id: https://glew.svn.sourceforge.net/svnroot/glew/trunk/glew@315 783a27ee-832a-0410-bc00-9f386506c6dd

Makefile

@@ -39,195 +39,14 @@ TARDIR = ../glew-$(GLEW_VERSION)
 TARBALL = ../glew_$(GLEW_VERSION).tar.gz
 
 SHELL = /bin/sh
-SYSTEM = $(strip $(shell uname -s))
+SYSTEM = $(shell config/config.guess | cut -d - -f 3)
-
+SYSTEM.SUPPORTED = $(shell test -f config/Makefile.$(SYSTEM) && echo 1)
-# ----------------------------------------------------------------------------
-# Cygwin
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst CYGWIN%,CYGWIN,$(SYSTEM)), CYGWIN)
-NAME = glew32
-CC = gcc -mno-cygwin
-LD = ld
-CFLAGS.EXTRA = -DGLEW_STATIC
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA += -DGLEW_MX
-endif
-LDFLAGS.SO = -shared -soname $(LIB.SONAME)
-LDFLAGS.GL = -lglu32 -lopengl32 -lgdi32 -luser32 -lkernel32
-LDFLAGS.EXTRA =
-WARN = -Wall -W
-POPT = -O2
-BIN.SUFFIX = .exe
-LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
-LIB.DEVLNK = lib$(NAME).so
-LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
-LIB.STATIC = lib$(NAME).a
 
+ifeq ($(SYSTEM.SUPPORTED), 1)
+include config/Makefile.$(SYSTEM)
 else
-# ----------------------------------------------------------------------------
-# Mingw32
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst MINGW32%,MINGW32,$(SYSTEM)), MINGW32)
-NAME = glew32
-CC = gcc
-# use gcc for linking, with ld it does not work
-LD = gcc
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA = -DGLEW_MX
-endif
-CFLAGS.SO = -DGLEW_BUILD
-#LDFLAGS.SO = -shared -soname $(LIB.SONAME) --out-implib lib/$(LIB.DEVLNK)
-LDFLAGS.SO = -shared -Wl,-soname,$(LIB.SONAME) -Wl,--out-implib,lib/$(LIB.DEVLNK)
-LDFLAGS.GL = -lglu32 -lopengl32 -lgdi32 -luser32 -lkernel32
-LDFLAGS.EXTRA = -L/mingw/lib
-WARN = -Wall -W
-POPT = -O2
-BIN.SUFFIX = .exe
-LIB.SONAME = $(NAME).dll
-LIB.DEVLNK = lib$(NAME).dll.a    # for mingw this is the dll import lib
-LIB.SHARED = $(NAME).dll
-LIB.STATIC = lib$(NAME).a     # the static lib will be broken (see CFLAGS.SO)
-
-else
-# ----------------------------------------------------------------------------
-# Linux
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst Linux%,Linux,$(SYSTEM)), Linux)
-NAME = GLEW
-CC = cc
-LD = ld
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA = -DGLEW_MX
-endif
-PICFLAG = -fPIC
-LDFLAGS.SO = -shared -soname $(LIB.SONAME)
-LDFLAGS.EXTRA = -L/usr/X11R6/lib
-LDFLAGS.GL = -lXmu -lXi -lGLU -lGL -lXext -lX11
-LDFLAGS.STATIC = -Wl,-Bstatic
-LDFLAGS.DYNAMIC = -Wl,-Bdynamic
-NAME = GLEW
-WARN = -Wall -W
-POPT = -O2
-BIN.SUFFIX =
-LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
-LIB.DEVLNK = lib$(NAME).so
-LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
-LIB.STATIC = lib$(NAME).a
-SHARED_OBJ_EXT = pic_o
-
-else
-# ----------------------------------------------------------------------------
-# FreeBSD
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst FreeBSD%,FreeBSD,$(SYSTEM)), FreeBSD)
-NAME = GLEW
-CC = cc
-LD = ld
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA = -DGLEW_MX
-endif
-LDFLAGS.SO = -shared -soname $(LIB.SONAME)
-LDFLAGS.EXTRA = -L/usr/X11R6/lib
-LDFLAGS.GL = -lXmu -lXi -lGLU -lGL -lXext -lX11
-LDFLAGS.STATIC = -Wl,-Bstatic
-LDFLAGS.DYNAMIC = -Wl,-Bdynamic
-CFLAGS.EXTRA += -I/usr/X11R6/include
-NAME = GLEW
-WARN = -Wall -W
-POPT = -O2
-BIN.SUFFIX =
-LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
-LIB.DEVLNK = lib$(NAME).so
-LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
-LIB.STATIC = lib$(NAME).a
-
-else
-# ----------------------------------------------------------------------------
-# Irix
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst IRIX%,IRIX,$(SYSTEM)), IRIX)
-NAME = GLEW
-CC = cc
-LD = ld
-ABI = -64# -n32
-CC += $(ABI)
-LD += $(ABI)
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA = -DGLEW_MX
-endif
-LDFLAGS.SO = -shared -soname $(LIB.SONAME)
-LDFLAGS.EXTRA =
-LDFLAGS.GL = -lGLU -lGL -lXext -lX11
-NAME = GLEW
-WARN = -fullwarn -woff 1110,1498
-POPT = -O2
-BIN.SUFFIX =
-LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
-LIB.DEVLNK = lib$(NAME).so
-LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
-LIB.STATIC = lib$(NAME).a
-
-else
-# ----------------------------------------------------------------------------
-# Darwin
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst Darwin%,Darwin,$(SYSTEM)), Darwin)
-NAME = GLEW
-CC = cc
-LD = cc
-CFLAGS.EXTRA = -no-cpp-precomp -dynamic -fno-common
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA += -DGLEW_MX
-endif
-LDFLAGS.SO = -dynamiclib -install_name $(GLEW_DEST)/lib/$(LIB.SHARED)
-LDFLAGS.EXTRA =
-ifneq (undefined, $(origin GLEW_APPLE_GLX))
-CFLAGS.EXTRA += -I/usr/X11R6/include -D'GLEW_APPLE_GLX'
-LDFLAGS.GL = -L/usr/X11R6/lib -lXmu -lXi -lGLU -lGL -lXext -lX11
-else
-LDFLAGS.GL = -framework AGL -framework OpenGL
-endif
-NAME = GLEW
-BIN.SUFFIX =
-WARN = -Wall -W
-POPT = -O2
-LIB.SONAME = lib$(NAME).$(GLEW_MAJOR).dylib
-LIB.DEVLNK = lib$(NAME).dylib
-LIB.SHARED = lib$(NAME).$(GLEW_VERSION).dylib
-LIB.STATIC = lib$(NAME).a
-
-else
-# ----------------------------------------------------------------------------
-# Solaris
-# ----------------------------------------------------------------------------
-ifeq ($(patsubst SunOS%,SunOS,$(SYSTEM)), SunOS)
-NAME = GLEW
-CC = cc
-LD = ld
-CFLAGS.EXTRA = -I/usr/openwin/include
-ifneq (undefined, $(origin GLEW_MX))
-CFLAGS.EXTRA += -DGLEW_MX
-endif
-LDFLAGS.SO = -G
-LDFLAGS.EXTRA = -L/usr/openwin/lib
-LDFLAGS.GL = -lXmu -lXi -lGLU -lGL -lXext -lX11
-NAME = GLEW
-BIN.SUFFIX =
-POPT = -xO2
-LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
-LIB.DEVLNK = lib$(NAME).so
-LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
-LIB.STATIC = lib$(NAME).a
-else
-# ----------------------------------------------------------------------------
 $(error "Platform '$(SYSTEM)' not supported")
 endif
-endif
-endif
-endif
-endif
-endif
-endif
 
 ifeq (undefined, $(origin SHARED_OBJ_EXT))
 SHARED_OBJ_EXT = o

config/Makefile.cygwin

@@ -0,0 +1,19 @@
+NAME = glew32
+CC = gcc
+# use gcc for linking, with ld it does not work
+LD = gcc
+ifneq (undefined, $(origin GLEW_MX))
+CFLAGS.EXTRA = -DGLEW_MX
+endif
+CFLAGS.SO = -DGLEW_BUILD
+#LDFLAGS.SO = -shared -soname $(LIB.SONAME) --out-implib lib/$(LIB.DEVLNK)
+LDFLAGS.SO = -shared -Wl,-soname,$(LIB.SONAME) -Wl,--out-implib,lib/$(LIB.DEVLNK)
+LDFLAGS.GL = -lglu32 -lopengl32 -lgdi32 -luser32 -lkernel32
+LDFLAGS.EXTRA = -L/mingw/lib
+WARN = -Wall -W
+POPT = -O2
+BIN.SUFFIX = .exe
+LIB.SONAME = $(NAME).dll
+LIB.DEVLNK = lib$(NAME).dll.a    # for mingw this is the dll import lib
+LIB.SHARED = $(NAME).dll
+LIB.STATIC = lib$(NAME).a     # the static lib will be broken (see CFLAGS.SO)

config/Makefile.freebsd

@@ -0,0 +1,20 @@
+NAME = GLEW
+CC = cc
+LD = ld
+ifneq (undefined, $(origin GLEW_MX))
+CFLAGS.EXTRA = -DGLEW_MX
+endif
+LDFLAGS.SO = -shared -soname $(LIB.SONAME)
+LDFLAGS.EXTRA = -L/usr/X11R6/lib
+LDFLAGS.GL = -lXmu -lXi -lGLU -lGL -lXext -lX11
+LDFLAGS.STATIC = -Wl,-Bstatic
+LDFLAGS.DYNAMIC = -Wl,-Bdynamic
+CFLAGS.EXTRA += -I/usr/X11R6/include
+NAME = GLEW
+WARN = -Wall -W
+POPT = -O2
+BIN.SUFFIX =
+LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
+LIB.DEVLNK = lib$(NAME).so
+LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
+LIB.STATIC = lib$(NAME).a

config/Makefile.irix

@@ -0,0 +1,20 @@
+NAME = GLEW
+CC = cc
+LD = ld
+ABI = -64# -n32
+CC += $(ABI)
+LD += $(ABI)
+ifneq (undefined, $(origin GLEW_MX))
+CFLAGS.EXTRA = -DGLEW_MX
+endif
+LDFLAGS.SO = -shared -soname $(LIB.SONAME)
+LDFLAGS.EXTRA =
+LDFLAGS.GL = -lGLU -lGL -lXext -lX11
+NAME = GLEW
+WARN = -fullwarn -woff 1110,1498
+POPT = -O2
+BIN.SUFFIX =
+LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
+LIB.DEVLNK = lib$(NAME).so
+LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
+LIB.STATIC = lib$(NAME).a

config/Makefile.linux

@@ -0,0 +1,21 @@
+NAME = GLEW
+CC = cc
+LD = ld
+ifneq (undefined, $(origin GLEW_MX))
+CFLAGS.EXTRA = -DGLEW_MX
+endif
+PICFLAG = -fPIC
+LDFLAGS.SO = -shared -soname $(LIB.SONAME)
+LDFLAGS.EXTRA = -L/usr/X11R6/lib
+LDFLAGS.GL = -lXmu -lXi -lGLU -lGL -lXext -lX11
+LDFLAGS.STATIC = -Wl,-Bstatic
+LDFLAGS.DYNAMIC = -Wl,-Bdynamic
+NAME = GLEW
+WARN = -Wall -W
+POPT = -O2
+BIN.SUFFIX =
+LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
+LIB.DEVLNK = lib$(NAME).so
+LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
+LIB.STATIC = lib$(NAME).a
+SHARED_OBJ_EXT = pic_o

config/Makefile.mingw32

@@ -0,0 +1,19 @@
+NAME = glew32
+CC = gcc
+# use gcc for linking, with ld it does not work
+LD = gcc
+ifneq (undefined, $(origin GLEW_MX))
+CFLAGS.EXTRA = -DGLEW_MX
+endif
+CFLAGS.SO = -DGLEW_BUILD
+#LDFLAGS.SO = -shared -soname $(LIB.SONAME) --out-implib lib/$(LIB.DEVLNK)
+LDFLAGS.SO = -shared -Wl,-soname,$(LIB.SONAME) -Wl,--out-implib,lib/$(LIB.DEVLNK)
+LDFLAGS.GL = -lglu32 -lopengl32 -lgdi32 -luser32 -lkernel32
+LDFLAGS.EXTRA = -L/mingw/lib
+WARN = -Wall -W
+POPT = -O2
+BIN.SUFFIX = .exe
+LIB.SONAME = $(NAME).dll
+LIB.DEVLNK = lib$(NAME).dll.a    # for mingw this is the dll import lib
+LIB.SHARED = $(NAME).dll
+LIB.STATIC = lib$(NAME).a     # the static lib will be broken (see CFLAGS.SO)

config/Makefile.sunos

@@ -0,0 +1,17 @@
+NAME = GLEW
+CC = cc
+LD = ld
+CFLAGS.EXTRA = -I/usr/openwin/include
+ifneq (undefined, $(origin GLEW_MX))
+CFLAGS.EXTRA += -DGLEW_MX
+endif
+LDFLAGS.SO = -G
+LDFLAGS.EXTRA = -L/usr/openwin/lib
+LDFLAGS.GL = -lXmu -lXi -lGLU -lGL -lXext -lX11
+NAME = GLEW
+BIN.SUFFIX =
+POPT = -xO2
+LIB.SONAME = lib$(NAME).so.$(GLEW_MAJOR)
+LIB.DEVLNK = lib$(NAME).so
+LIB.SHARED = lib$(NAME).so.$(GLEW_VERSION)
+LIB.STATIC = lib$(NAME).a

doc/README.html

@@ -546,7 +546,8 @@ GLEW is originally derived from the EXTGL project by Lev Povalahev.  The
 source code is licensed under the modified BSD license, the <a
 href="sgi.txt">SGI Free Software License B</a>, and the <a
 href="glx.txt">GLX Public License</a>. The automatic code
-generation scripts are released under the <a href="gpl.txt">GPL</a>.
+generation scripts and the config.guess script (from the GNU config tools) are
+released under the <a href="gpl.txt">GPL</a>.
 
 <blockquote><pre></pre></blockquote>