support for older MacOS versions

Author: EdHarry

install

@@ -53,7 +53,7 @@ if args.compiler is None:
 
 if args.flags is None:
     args.flags = getFlags(args.compiler)
-    args.flags += " -march=native"
+    args.flags += " -march=x86-64 -mtune=generic"
 
 
 if args.libdeflate is None:
@@ -76,7 +76,8 @@ if args.libdeflate is None:
 
     env = os.environ.copy()
     env['CC'] = args.compiler
-    env['CFLAGS'] = flags = getFlags(args.compiler)
+    env['CFLAGS'] = args.flags
+    env['CPPFLAGS'] = args.flags
     env['DISABLE_GZIP'] = '1'
     env['DISABLE_ZLIB'] = '1'
     p = Popen(['make', 'libdeflate.a'], stdin=PIPE, stdout=PIPE, stderr=PIPE, env=env)
@@ -121,7 +122,7 @@ if args.libglfw3 is None:
     env['CC'] = args.compiler
     env['CXX'] = args.compiler
 
-    p = Popen(['cmake', '-DCMAKE_BUILD_TYPE=Release', '-DGLFW_BUILD_EXAMPLES=OFF', '-DGLFW_BUILD_DOCS=OFF', '-DGLFW_INSTALL=OFF', '-DGLFW_BUILD_TESTS=OFF', '..'], stdin=PIPE, stdout=PIPE, stderr=PIPE, env=env)
+    p = Popen(['cmake', '-DCMAKE_BUILD_TYPE=Release', '-DGLFW_BUILD_EXAMPLES=OFF', '-DGLFW_BUILD_DOCS=OFF', '-DGLFW_INSTALL=OFF', '-DGLFW_BUILD_TESTS=OFF', '-DCMAKE_CXX_FLAGS="{}"'.format(args.flags), '-DCMAKE_C_FLAGS="{}"'.format(args.flags), '..'], stdin=PIPE, stdout=PIPE, stderr=PIPE, env=env)
     output, err = p.communicate()
     if p.returncode != 0:
         raise SystemExit("Error running cmake on glfw: " + err.decode('utf-8'))
@@ -151,7 +152,7 @@ if p.returncode != 0:
     raise SystemExit("Error making glad.o: " + err.decode('utf-8'))
 
 print("Building PretextView")
-links = " -ldl -lX11 -lm" if "linux" in sys.platform else " -framework Cocoa -framework OpenGL -framework IOKit -framework CoreVideo"
+links = " -ldl -lX11 -lm" if "linux" in sys.platform else " -mmacosx-version-min=10.10 -framework Cocoa -framework OpenGL -framework IOKit -framework CoreVideo"
 command = args.compiler + " -std=c++11 PretextView.cpp " + args.libdeflate + " " + args.libglfw3 + " glad.o " + args.flags + " -o PretextView -Iinclude" + links
 p = Popen(command.strip().split(), stdin=PIPE, stdout=PIPE, stderr=PIPE)
 output, err = p.communicate()