Trival misc. typo fixes

configure.ac

@@ -124,7 +124,7 @@ AS_CASE([$host_os],
     build_wgl=yes
     has_znow=yes
     # On windows, the DLL has to have all of its functions
-    # resolved at link time, so we have to link directly aginst
+    # resolved at link time, so we have to link directly against
     # opengl32.dll.  But that's the only GL provider, anyway.
     EPOXY_LINK_LIBS="-lopengl32"
 

meson.build

@@ -208,7 +208,7 @@ if not gles1_dep.found()
 endif
 
 # On windows, the DLL has to have all of its functions
-# resolved at link time, so we have to link directly aginst
+# resolved at link time, so we have to link directly against
 # opengl32.  But that's the only GL provider, anyway.
 if host_system == 'windows'
   opengl32_dep = cc.find_library('opengl32', required: true)

src/dispatch_common.c

@@ -487,7 +487,7 @@ epoxy_glsl_version(void)
  * is supported by the client, this probably isn't the function you want.
  *
  * Some parts of the spec for OpenGL and friends will return an OpenGL formatted
- * extension string that is seperate from the usual extension strings for the
+ * extension string that is separate from the usual extension strings for the
  * spec. This function provides easy parsing of those strings.
  *
  * @see epoxy_has_gl_extension()