New files

git-svn-id: file:///home/puszcza/svnroot/ellinika/trunk@27 941c8c0f-9102-463b-b60b-cd22ce0e6858

1 files changed, 49 insertions, 0 deletions

diff --git a/m4/common.m4 b/m4/common.m4
new file mode 100644
index 0000000..395a7cb
--- /dev/null
+++ b/m4/common.m4
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+dnl RA_FLUSHLEFT -- remove all whitespace at the beginning of lines
+dnl This is useful for c-code which may include cpp statements
+dnl
+define([RA_FLUSHLEFT],
+ [changequote(`,')dnl
+patsubst(`$1', `^[ 	]+')
+changequote([,])])dnl
+
+dnl RA_RESULT_ACTIONS -- generate shell code for the result of a test
+dnl   $1 -- CVAR  -- cache variable to check
+dnl   $2 -- NAME  -- if not empty, used to generate a default value TRUE:
+dnl                  `AC_DEFINE(HAVE_NAME)'
+dnl   $2 -- TRUE  -- what to do if the CVAR is not `no'
+dnl   $3 -- FALSE -- what to do otherwise; defaults to `:'
+dnl
+AC_DEFUN([RA_RESULT_ACTIONS], [
+[if test "$$1" != "" -a "$$1" != no; then
+  ]ifelse([$3], ,
+          [AC_DEFINE(HAVE_]translit($2, [a-z ./<>], [A-Z___])[,1,[FIXME])],
+          [$3])[
+else
+  ]ifelse([$4], , [:], [$4])[
+fi]])dnl
+
+dnl RA_CHECK_STRUCT_FIELD -- See if a structure has a particular field
+dnl   $1 - NAME  -- name of structure
+dnl   $2 - FIELD -- name of field to test
+dnl   $3 - INCLS -- C program text to inculde necessary files for testing
+dnl   $4 - TRUE  -- what to do if struct NAME has FIELD; defaults to 
+dnl		    `AC_DEFINE(HAVE_NAME_FIELD)'
+dnl   $5 - FALSE -- what to do if not; defaults to `:'
+dnl
+dnl NOTE: We still don't use AC_CHECK_MEMBERS, since it has (as of
+dnl autoconf 2.53) a bug which prevents it from recognizing members
+dnl of aggregate type.
+
+AC_DEFUN([RA_CHECK_STRUCT_FIELD], [
+  define([ra_CVAR], [ra_cv_struct_]translit($1_$2, [A-Z], [a-z]))dnl
+  AC_CACHE_CHECK([whether struct $1 has $2 field], ra_CVAR,
+    AC_TRY_COMPILE(RA_FLUSHLEFT([$3]),
+      [struct $1 ra_x; int ra_y = sizeof ra_x.$2;],
+      ra_CVAR[=yes], ra_CVAR[=no]))
+  RA_RESULT_ACTIONS(ra_CVAR, [$1_$2], [$4], [$5])dnl
+  undefine([ra_CVAR])])dnl
+
+AC_SUBST(RADIUSD_LDADD_LIST)
+AC_DEFUN([RA_RADIUSD_LDADD],
+ RADIUSD_LDADD_LIST="$RADIUSD_LDADD_LIST [$1]")
+