* config/qt.m4: remove (unused)

[lyx.git] / config / lyxinclude.m4

diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index d5dce19dba314aad9c73e7d03ca5479243e563d0..50cd0ce18595063221320795455003e22477ccc2 100644 (file)
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -694,3 +694,23 @@ AC_DEFUN([MSYS_AC_CANONICAL_PATH],
  $1=`echo "$2" | sed "s?^[[./]]*$ac_dir/*?$ac_val/?"'
    s?/*$[]??'`
 ])
+
+dnl this is used by the macro blow to general a proper config.h.in entry
+m4_define([LYX_AH_CHECK_DECL],
+[AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_$1),
+  [Define if you have the prototype for function `$1'])])
+
+dnl Check things are declared in headers to avoid errors or warnings.
+dnl Called like LYX_CHECK_DECL(function, header1 header2...)
+dnl Defines HAVE_DECL_{FUNCTION}
+AC_DEFUN([LYX_CHECK_DECL],
+[LYX_AH_CHECK_DECL($1)
+for ac_header in $2
+do
+  AC_MSG_CHECKING([if $1 is declared by header $ac_header])
+  AC_EGREP_HEADER($1, $ac_header,
+      [AC_MSG_RESULT(yes)
+       AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DECL_$1))
+       break],
+      [AC_MSG_RESULT(no)])
+done])