docs/aclocal.m4

   1 dnl DOCS_DEFINE_TARGET
   2 dnl arg1: Target that is defined
   3 dnl arg2: Requirement
   4 dnl arg3: Official name
   5 dnl arg4: Makefile target name
   6
   7 AC_DEFUN(DOCS_DEFINE_TARGET, [
   8         if test "x$$1_REQUIRES" = x; then
   9                 $1_REQUIRES="$$2_REQUIRES"
  10         else
  11                 $1_REQUIRES="$$1_REQUIRES $$2_REQUIRES"
  12         fi
  13
  14         if test x"$$1_REQUIRES" = x; then
  15                 TARGETS="$TARGETS $4"
  16         else
  17                 AC_MSG_RESULT([Building the $3 requires : $$1_REQUIRES])
  18         fi
  19 ])
  20
  21 dnl DOCS_TARGET_REQUIRE_PROGRAM
  22 dnl arg1: program variable
  23 dnl arg2: program executable name
  24 dnl arg3: target that requires it
  25
  26 AC_DEFUN(DOCS_TARGET_REQUIRE_PROGRAM, [
  27         AC_PATH_PROG([$1], [$2])
  28         if test x"$$1" = x; then
  29                 if test x"$$3_REQUIRES" = x; then
  30                         $3_REQUIRES="$2"
  31                 else
  32                         $3_REQUIRES="$$3_REQUIRES $2"
  33                 fi
  34         fi
  35 ])
  36
  37 dnl DOCS_TARGET_REQUIRE_DIR
  38 dnl arg1: list of possible paths
  39 dnl arg2: file in dir know to exist
  40 dnl arg3: variable to store found path in
  41 dnl arg4: target that requires it
  42
  43 AC_DEFUN(DOCS_TARGET_REQUIRE_DIR, [
  44         AC_SUBST($3)
  45         for I in $1;
  46         do
  47                 test -f "$I/$2" && $3="$I"
  48         done
  49
  50         if test x$$3 = x; then
  51                 if test x"$$4_REQUIRES" = x; then
  52                         $4_REQUIRES="$3"
  53                 else
  54                         $4_REQUIRES="$$4_REQUIRES $3"
  55                 fi
  56         fi
  57 ])