[gimp/meson] Enable CPU optimizations only in optimized builds

[Félix Piédallu <fpiedallu src gnome org>]

commit eede9cf8125ccc11ce4d3fc41d99685209fb64c9
Author: Félix Piédallu <felix piedallu me>
Date:   Wed Feb 14 17:11:39 2018 +0100

    Enable CPU optimizations only in optimized builds

 meson.build |   87 ++++++++++++++++++++++++++++++----------------------------
 1 files changed, 45 insertions(+), 42 deletions(-)
---
diff --git a/meson.build b/meson.build
index 8de1f3c..48b37d0 100644
--- a/meson.build
+++ b/meson.build
@@ -168,51 +168,54 @@ endif
 #     # #       #     #    #     # #        #   # #    # #    #
  #####  #        #####     ####### #        #   # #    #  ####
 
-## TODO only for release
-# Check for compiler CPU extensions
-cpuext_args = [
-  '-mfpmath=sse',
-  '-mmmx',
-  '-msse',
-  '-msse2',
-  '-msse4.1',
-]
-add_project_arguments(cc .get_supported_arguments(cpuext_args), language: 'c')
-add_project_arguments(cxx.get_supported_arguments(cpuext_args), language: 'cpp')
-
-conf.set10('USE_MMX',                   cc.has_argument('-mmmx'))
-conf.set10('USE_SSE',                   cc.has_argument('-msse'))
-conf.set10('COMPILE_SSE2_INTRINISICS',  cc.has_argument('-msse2'))
-conf.set10('COMPILE_SSE4_1_INTRINISICS',cc.has_argument('-msse4.1'))
-
-
-have_altivec        = false
-have_altivec_sysctl = false
-if arch_ppc
-  altivec_args = cc.get_supported_arguments([
-    '-faltivec',
-    '-maltivec',
-    '-mabi=altivec',
-  ])
 
-  if altivec_args != []
-    add_project_arguments     (altivec_args, language: [ 'c', 'cpp'])
-    add_project_link_arguments(altivec_args, language: [ 'c', 'cpp'])
-
-    if host_os.contains('darwin')
-      have_altivec = true
-      have_altivec_sysctl = true
-    elif cc.compiles('''
-      int main() { asm ("vand %v0, %v0, %v0"); return 0; }
-      ''')
-      have_altivec = true
+if (get_option('buildtype') == 'release' or
+    get_option('buildtype') == 'debugoptimized')
+
+  # Check for compiler CPU extensions
+  cpuext_args = [
+    '-mfpmath=sse',
+    '-mmmx',
+    '-msse',
+    '-msse2',
+    '-msse4.1',
+  ]
+  add_project_arguments(cc .get_supported_arguments(cpuext_args), language: 'c')
+  add_project_arguments(cxx.get_supported_arguments(cpuext_args), language: 'cpp')
+
+  conf.set10('USE_MMX',                   cc.has_argument('-mmmx'))
+  conf.set10('USE_SSE',                   cc.has_argument('-msse'))
+  conf.set10('COMPILE_SSE2_INTRINISICS',  cc.has_argument('-msse2'))
+  conf.set10('COMPILE_SSE4_1_INTRINISICS',cc.has_argument('-msse4.1'))
+
+
+  have_altivec        = false
+  have_altivec_sysctl = false
+  if arch_ppc
+    altivec_args = cc.get_supported_arguments([
+      '-faltivec',
+      '-maltivec',
+      '-mabi=altivec',
+    ])
+
+    if altivec_args != []
+      add_project_arguments     (altivec_args, language: [ 'c', 'cpp'])
+      add_project_link_arguments(altivec_args, language: [ 'c', 'cpp'])
+
+      if host_os.contains('darwin')
+        have_altivec = true
+        have_altivec_sysctl = true
+      elif cc.compiles('''
+        int main() { asm ("vand %v0, %v0, %v0"); return 0; }
+        ''')
+        have_altivec = true
+      endif
     endif
   endif
-endif
-conf.set('HAVE_ALTIVEC_SYSCTL', have_altivec_sysctl)
-conf.set('USE_ALTIVEC',         have_altivec)
-
+  conf.set('HAVE_ALTIVEC_SYSCTL', have_altivec_sysctl)
+  conf.set('USE_ALTIVEC',         have_altivec)
 
+endif
 
 ################################################################################
 # Mandatory Dependencies