PR binutils/4334

[deliverable/binutils-gdb.git] / config / acx.m4

diff --git a/config/acx.m4 b/config/acx.m4
index a8970759f5ca0b096e048256772447a601e98e37..d186a4ccccd58d1583416c8d0a5bac9b27ca1dd4 100644 (file)
--- a/config/acx.m4
+++ b/config/acx.m4
@@ -211,6 +211,8 @@ if test -z "$ac_cv_prog_$1" ; then
   else
     $1="${ncn_target_tool_prefix}[$]2"
   fi], [$1="$3"])
+else
+  $1="$ac_cv_prog_$1"
 fi
 ]) []dnl # NCN_STRICT_CHECK_TARGET_TOOLS
   
@@ -324,8 +326,8 @@ if test -z "$ac_cv_path_$1" ; then
     fi
   elif test $build != $host && test $have_gcc_for_target = yes; then
     $1=`$GCC_FOR_TARGET --print-prog-name=$2`
-    test [$]$1=$2 && $1=
-    ac_cv_path_$1=[$]$1
+    test [$]$1 = $2 && $1=
+    test -n "[$]$1" && ac_cv_path_$1=[$]$1
   fi
 fi
 if test -z "$ac_cv_path_$1" && test -n "$gcc_cv_tool_dirs"; then
@@ -540,10 +542,6 @@ AC_DEFUN([ACX_CHECK_PROG_VER],[
                       $5)  gcc_cv_prog_$2_modern=yes;;
                       *)   gcc_cv_prog_$2_modern=no;;
                     esac]
-
-                    if test $gcc_cv_prog_$2_modern = no; then
-                      $1="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing $2"
-                    fi
                    ])
   else
     gcc_cv_prog_$2_modern=no
@@ -552,3 +550,71 @@ AC_DEFUN([ACX_CHECK_PROG_VER],[
     $1="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing $2"
   fi
 ])
+
+dnl Support the --with-pkgversion configure option.
+dnl ACX_PKGVERSION(default-pkgversion)
+AC_DEFUN([ACX_PKGVERSION],[
+  AC_ARG_WITH(pkgversion,
+    AS_HELP_STRING([--with-pkgversion=PKG],
+                   [Use PKG in the version string in place of "$1"]),
+    [case "$withval" in
+      yes) AC_MSG_ERROR([package version not specified]) ;;
+      no)  PKGVERSION= ;;
+      *)   PKGVERSION="($withval) " ;;
+     esac],
+    PKGVERSION="($1) "
+  )
+  AC_SUBST(PKGVERSION)
+])
+
+dnl Support the --with-bugurl configure option.
+dnl ACX_BUGURL(default-bugurl)
+AC_DEFUN([ACX_BUGURL],[
+  AC_ARG_WITH(bugurl,
+    AS_HELP_STRING([--with-bugurl=URL],
+                   [Direct users to URL to report a bug]),
+    [case "$withval" in
+      yes) AC_MSG_ERROR([bug URL not specified]) ;;
+      no)  BUGURL=
+          ;;
+      *)   BUGURL="$withval"
+          ;;
+     esac],
+     BUGURL="$1"
+  )
+  case ${BUGURL} in
+  "")
+    REPORT_BUGS_TO=
+    REPORT_BUGS_TEXI=
+    ;;
+  *)
+    REPORT_BUGS_TO="<$BUGURL>"
+    REPORT_BUGS_TEXI=@uref{`echo "$BUGURL" | sed 's/@/@@/g'`}
+    ;;
+  esac;
+  AC_SUBST(REPORT_BUGS_TO)
+  AC_SUBST(REPORT_BUGS_TEXI)
+])
+
+dnl ####
+dnl # ACX_CHECK_CYGWIN_CAT_WORKS
+dnl # On Cygwin hosts, check that the cat command ignores 
+dnl # carriage returns as otherwise builds will not work.
+dnl # See binutils PR 4334 for more details.
+AC_DEFUN([ACX_CHECK_CYGWIN_CAT_WORKS],[
+AC_MSG_CHECKING([to see if cat works as expected])
+echo a >cygwin-cat-check
+if test `cat cygwin-cat-check` == a ; then
+  rm cygwin-cat-check
+  AC_MSG_RESULT(yes)
+else
+  rm cygwin-cat-check
+  AC_MSG_RESULT(no)
+  AC_MSG_ERROR([The cat command does not ignore carriage return characters.
+  Please either mount the build directory in binary mode or run the following
+  commands before running any configure script:
+set -o igncr
+export SHELLOPTS 
+  ])
+fi
+])