imgui: fix undefined behaviour bitshift.

[mesa.git] / meson.build

diff --git a/meson.build b/meson.build
index a637f3b1442fddfb9919dbabc0da4750d42cfac2..2cefbb3f20485396af566fa4ee67c660b2c70792 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -70,25 +70,43 @@ endif
 
 with_gles1 = get_option('gles1')
 with_gles2 = get_option('gles2')
+if host_machine.system() == 'windows'
+  if with_gles1 == 'auto'
+    with_gles1 = 'false'
+  endif
+  if with_gles2 == 'auto'
+    with_gles2 = 'false'
+  endif
+endif
 with_opengl = get_option('opengl')
-with_any_opengl = with_opengl or with_gles1 or with_gles2
-# Only build shared_glapi if at least one OpenGL API is enabled
-with_shared_glapi = get_option('shared-glapi') and with_any_opengl
-
+with_shared_glapi = get_option('shared-glapi')
 
 # shared-glapi is required if at least two OpenGL APIs are being built
 if not with_shared_glapi
-  if ((with_gles1 and with_gles2) or (with_gles1 and with_opengl)
-      or (with_gles2 and with_opengl))
+  if ((with_gles1 == 'true' and with_gles2 == 'true') or 
+      (with_gles1 == 'true' and with_opengl) or
+      (with_gles2 == 'true' and with_opengl))
     error('shared-glapi required for building two or more of OpenGL, OpenGL ES 1.x, OpenGL ES 2.x')
   endif
+  with_gles1 = 'false'
+  with_gles2 = 'false'
 endif
 
 # We require OpenGL for OpenGL ES
-if (with_gles1 or with_gles2) and not with_opengl
-  error('building OpenGL ES without OpenGL is not supported.')
+if not with_opengl
+  if (with_gles1 == 'true' or with_gles2 == 'true') and not with_opengl
+    error('building OpenGL ES without OpenGL is not supported.')
+  endif
+  with_gles1 = 'false'
+  with_gles2 = 'false'
 endif
 
+with_gles1 = with_gles1 != 'false'
+with_gles2 = with_gles2 != 'false'
+with_any_opengl = with_opengl or with_gles1 or with_gles2
+# Only build shared_glapi if at least one OpenGL API is enabled
+with_shared_glapi = get_option('shared-glapi') and with_any_opengl
+
 system_has_kms_drm = ['openbsd', 'netbsd', 'freebsd', 'dragonfly', 'linux'].contains(host_machine.system())
 
 dri_drivers = get_option('dri-drivers')
@@ -640,7 +658,7 @@ endif
 if get_option('power8') != 'false'
   # on old versions of meson the cpu family would return as ppc64le on little
   # endian power8, this was changed in 0.48 such that the family would always
-  # be ppc64 regardless of endianness, and the the machine.endian() value
+  # be ppc64 regardless of endianness, and then the machine.endian() value
   # should be checked. Since we support versions < 0.48 we need to use
   # startswith.
   if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
@@ -757,9 +775,19 @@ if get_option('buildtype') == 'debug'
   pre_args += '-DDEBUG'
 endif
 
-if get_option('shader-cache')
-  pre_args += '-DENABLE_SHADER_CACHE'
-elif with_amd_vk
+with_shader_cache = false
+_shader_cache = get_option('shader-cache')
+if _shader_cache != 'false'
+  if host_machine.system() == 'windows'
+    if _shader_cache == 'true'
+      error('Shader Cache does not currently work on Windows')
+    endif
+  else
+    pre_args += '-DENABLE_SHADER_CACHE'
+    with_shader_cache = true
+  endif
+endif
+if with_amd_vk and not with_shader_cache
   error('Radv requires shader cache support')
 endif
 
@@ -1090,7 +1118,7 @@ if cc.has_function('dl_iterate_phdr')
   pre_args += '-DHAVE_DL_ITERATE_PHDR'
 elif with_intel_vk
   error('Intel "Anvil" Vulkan driver requires the dl_iterate_phdr function')
-elif with_dri_i965 and get_option('shader-cache')
+elif with_dri_i965 and with_shader_cache
   error('Intel i965 GL driver requires dl_iterate_phdr when built with shader caching.')
 endif
 
@@ -1117,10 +1145,10 @@ if dep_thread.found() and host_machine.system() != 'windows'
 endif
 dep_expat = dependency('expat')
 # this only exists on linux so either this is linux and it will be found, or
-# its not linux and and wont
+# it's not linux and wont
 dep_m = cc.find_library('m', required : false)
 
-# Check for libdrm. various drivers have different libdrm version requirements,
+# Check for libdrm. Various drivers have different libdrm version requirements,
 # but we always want to use the same version for all libdrm modules. That means
 # even if driver foo requires 2.4.0 and driver bar requires 2.4.3, if foo and
 # bar are both on use 2.4.3 for both of them
@@ -1230,6 +1258,7 @@ if _llvm != 'false'
       with_gallium_opencl or _llvm == 'true'
     ),
     static : not _shared_llvm,
+    method : 'config-tool',
   )
   with_llvm = dep_llvm.found()
 endif
@@ -1474,8 +1503,11 @@ endif
 
 pkg = import('pkgconfig')
 
+prog_nm = find_program('nm', required : false)
 env_test = environment()
-env_test.set('NM', find_program('nm').path())
+if prog_nm.found()
+  env_test.set('NM', prog_nm.path())
+endif
 
 # This quirk needs to be applied to sources with functions defined in assembly
 # as GCC LTO drops them. See: https://bugs.freedesktop.org/show_bug.cgi?id=109391