D.gnu - Link SDL samples under cygwin with GDC
- Fauvel Wilfried (39/39) Jul 01 2006 Hi all,
- pedro alves (12/41) Jul 02 2006 Up until very recent cvs versions, ld wouldn't consider the $(name).lib
Hi all, I am trying to build SDL samples under cygwin with GDC compiler, I 'm using SDL and opengl found on http://shinh.skr.jp/d/porting.html (both copied in the root directory of my project in /SDL and /opengl), and I try to use the following Makefile : CC = gdc INCLUDES = -ISDL -Iopengl LDFLAGS_GL= -lopengl32 -lglu32 LDFLAGS_SDL= -lSDL -lSDL_d LIBRARIES = -L. -L/sw/lib -LSDL -Lopengl all: $(CC) testgl.d -c $(INCLUDES) $(CC) testgl.o $(LIBRARIES) $(LDFLAGS_GL) $(LDFLAGS_SDL) -o test.exe $(CC) testbitmap.d -c $(INCLUDES) $(CC) testbitmap.o $(LIBRARIES) $(LDFLAGS_GL) $(LDFLAGS_SDL) -o testbitmap.exe $(CC) picture.d -c $(INCLUDES) $(CC) picture.o $(LIBRARIES) $(LDFLAGS_GL) $(LDFLAGS_SDL) -o picture.exe If I don't add opengl32.dll in the same directory of opengl32.lib, testgl.o couldn't be linked (It seems opengl like is missing), and it crash during SDL initialisation when I try to run. testbitmap.d and picture.d doesn't like at all : gdc testbitmap.o -L. -L/sw/lib -LSDL -Lopengl -lopengl32 -lglu32 -lSDL -lSDL_d -o testbitmap.exe testbitmap.o:testbitmap.d:(.text+0x67c): undefined reference to `__D7picture12picture_bitsAh' collect2: ld returned 1 exit status make: *** [all] Error 1 gdc icture.o -L. -L/sw/lib -LSDL -Lopengl -lopengl32 -lglu32 -lSDL -lSDL_d -o picture.exe /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libgphobos.a(cmain.o):cmain.d:(.t ext+0x1a): undefined reference to `__Dmain' collect2: ld returned 1 exit status make: *** [all] Error 1 Is there any way to solve my linking problems ? Thanks for your answers.
Jul 01 2006
Fauvel Wilfried wrote:Hi all, I am trying to build SDL samples under cygwin with GDC compiler, I 'm using SDL and opengl found on http://shinh.skr.jp/d/porting.html (both copied in the root directory of my project in /SDL and /opengl), and I try to use the following Makefile : CC = gdc INCLUDES = -ISDL -Iopengl LDFLAGS_GL= -lopengl32 -lglu32 LDFLAGS_SDL= -lSDL -lSDL_d LIBRARIES = -L. -L/sw/lib -LSDL -Lopengl all: $(CC) testgl.d -c $(INCLUDES) $(CC) testgl.o $(LIBRARIES) $(LDFLAGS_GL) $(LDFLAGS_SDL) -o test.exe $(CC) testbitmap.d -c $(INCLUDES) $(CC) testbitmap.o $(LIBRARIES) $(LDFLAGS_GL) $(LDFLAGS_SDL) -o testbitmap.exe $(CC) picture.d -c $(INCLUDES) $(CC) picture.o $(LIBRARIES) $(LDFLAGS_GL) $(LDFLAGS_SDL) -o picture.exe If I don't add opengl32.dll in the same directory of opengl32.lib, testgl.o couldn't be linked (It seems opengl like is missing), and it crash during SDL initialisation when I try to run.Up until very recent cvs versions, ld wouldn't consider the $(name).lib form of libraries/import libs. When you put the dll in the search path, it would find it and link directly into it instead. In many cases, it is recommended to link into the dll directly for efficiency reasons, but there are some cases where it is impossible. Check it out here: http://sourceware.org/ml/binutils/2006-06/msg00280.html In those cases you can simply rename ex: opengl.lib -> libopengl.a. Cheers, Pedro Alves
Jul 02 2006