Xcode 4 で単純な allegro プロジェクトを構築しようとしています。
#include <stdio.h>
#include <allegro5/allegro.h>
int main(int argc, char **argv)
{
ALLEGRO_DISPLAY *display = NULL;
if(!al_init()) {
fprintf(stderr, "failed to initialize allegro!\n");
return -1;
}
display = al_create_display(640, 480);
if(!display) {
fprintf(stderr, "failed to create display!\n");
return -1;
}
al_clear_to_color(al_map_rgb(0,0,0));
al_flip_display();
al_rest(10.0);
al_destroy_display(display);
return 0;
}
次のコマンドを使用してターミナルからビルドできますが、Xcode 4 ではうまくいきませんでした。もう Xcode 3 を試す必要はありません。=\
gcc alleg5test.c -o alleg5test -L/usr/local/lib -lallegro -lallegro_main
私の Xcode 4 プロジェクトは、コンソール アプリケーション テンプレートを使用して作成されています。ビルド設定に次の変更が加えられました
ヘッダー検索パス/usr/local/include
ライブラリ検索パス/usr/local/lib
その他のリンカー フラグ-framework Cocoa -lallegro -lallegro_main
Xcode からプロジェクトをビルドしようとすると、次のエラーが発生します。
Build target Test of project Test with configuration Debug
CompileC /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Objects-normal/i386/main.o Test/main.cpp normal i386 c++ com.apple.compilers.gcc.4_2
cd /Users/zrbecker/Documents/Programming/Test
setenv LANG en_US.US-ASCII
/Developer/usr/bin/gcc-4.2 -x c++ -arch i386 -fmessage-length=0 -pipe -Wno-trigraphs -fpascal-strings -O0 -Wreturn-type -Wunused-variable -Wshorten-64-to-32 -DDEBUG -isysroot /Developer/SDKs/MacOSX10.6.sdk -fasm-blocks -mmacosx-version-min=10.6 -gdwarf-2 -fvisibility-inlines-hidden -iquote /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Test-generated-files.hmap -I/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Test-own-target-headers.hmap -I/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Test-all-target-headers.hmap -iquote /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Test-project-headers.hmap -I/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Products/Debug/include -I/Users/zrbecker/local/include -I/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/DerivedSources/i386 -I/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/DerivedSources -F/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Products/Debug -F/Users/zrbecker/Documents/Programming/Test/../../../Library/Frameworks -c /Users/zrbecker/Documents/Programming/Test/Test/main.cpp -o /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Objects-normal/i386/main.o
Ld /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Products/Debug/Test normal i386
cd /Users/zrbecker/Documents/Programming/Test
setenv MACOSX_DEPLOYMENT_TARGET 10.6
/Developer/usr/bin/g++-4.2 -arch i386 -isysroot /Developer/SDKs/MacOSX10.6.sdk -L/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Products/Debug -L/Users/zrbecker/local/lib -F/Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Products/Debug -F/Users/zrbecker/Documents/Programming/Test/../../../Library/Frameworks -filelist /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Intermediates/Test.build/Debug/Test.build/Objects-normal/i386/Test.LinkFileList -mmacosx-version-min=10.6 -framework Cocoa -lallegro -lallegro_main -framework OpenGL -o /Users/zrbecker/Library/Developer/Xcode/DerivedData/Test-hbexqsyhqhbcnfdswhkuzhjokkih/Build/Products/Debug/Test
ld: warning: ignoring file /Users/zrbecker/local/lib/liballegro.dylib, file was built for unsupported file format which is not the architecture being linked (i386)
ld: warning: ignoring file /Users/zrbecker/local/lib/liballegro_main.dylib, file was built for unsupported file format which is not the architecture being linked (i386)
Undefined symbols for architecture i386:
"_main", referenced from:
start in crt1.10.6.o
(maybe you meant: __al_mangled_main)
"_al_install_system", referenced from:
__al_mangled_main in main.o
"_al_create_display", referenced from:
__al_mangled_main in main.o
"_al_map_rgb", referenced from:
__al_mangled_main in main.o
"_al_clear_to_color", referenced from:
__al_mangled_main in main.o
"_al_flip_display", referenced from:
__al_mangled_main in main.o
"_al_rest", referenced from:
__al_mangled_main in main.o
"_al_destroy_display", referenced from:
__al_mangled_main in main.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status
このメッセージは、ライブラリが間違ってコンパイルされていることを示唆しているようですが、私が言ったように、ターミナルから正常にコンパイルしました。
allegro をソースからビルドしました。
tar -xzf allegro-5.0.0.tar.gz
cd allegro-5.0.0
mkdir Build
cd Build
cmake ..
make
sudo make install
上記の前にこれら2つのコマンドを追加したClangでビルドも試みました。
export PATH=/Developer/usr/bin:$PATH
export CC=clang
参考になる情報かどうかわかりませんが、損はしないと思います。
アドバイスをありがとう。