1 files changed, 117 insertions, 0 deletions
diff --git a/m4/evo_pilot_link_check.m4 b/m4/evo_pilot_link_check.m4
new file mode 100644
index 0000000000..5c97fe2a1b
--- /dev/null
+++ b/m4/evo_pilot_link_check.m4
@@ -0,0 +1,117 @@
+dnl PILOT_LINK_CHECK
+dnl Adds --with-pisock and determines the verion of the pisock
+#serial 0.1
+AC_SUBST(PISOCK_CFLAGS)
+AC_SUBST(PISOCK_LIBS)
+
+AC_DEFUN([PILOT_LINK_HOOK],[
+	AC_ARG_WITH([pisock],
+		AS_HELP_STRING([--with-pisock=PREFIX],
+		[Specify prefix for pisock files]),
+	[
+	if test x$withval = xyes; then
+		dnl Note that an empty true branch is not valid sh syntax.
+		ifelse([$1], [], :, [$1])
+	else
+		PISOCK_CFLAGS="-I$withval/include"
+		incdir="$withval/include"
+		PISOCK_LIBS="-L$withval/lib -lpisock -lpisync"
+		AC_MSG_CHECKING([for existance of "$withval"/lib/libpisock.so])
+		if test -r $withval/lib/libpisock.so; then
+		AC_MSG_RESULT([yes])
+		else
+		AC_MSG_ERROR([Unable to find libpisock. Try  http://www.pilot-link.org.])
+		fi
+	fi
+	])
+
+	if test x$PISOCK_CFLAGS = x; then
+		AC_CHECK_HEADER(pi-version.h, [incdir="/usr/include"], [
+		AC_CHECK_HEADER(libpisock/pi-version.h, [PISOCK_CFLAGS="-I/usr/include/libpisock"
+							piversion_include="libpisock/pi-version.h"
+							incdir="/usr/include/libpisock"
+							],[
+		AC_CHECK_HEADER($prefix/include/pi-version.h, [PISOCK_CFLAGS="-I$prefix/include/libpisock"
+								piversion_include="$prefix/include/pi-version.h"
+								if test x$PISOCK_LIBDIR = x; then
+									incdir="$prefix/include"
+									PISOCK_LIBS="-L$prefix/lib -lpisock -lpisync"
+								fi
+								],
+		AC_MSG_ERROR([Unable to find pi-version.h]))
+		])
+		])
+	fi
+
+	if test "x$PISOCK_LIBS" = "x"; then
+		AC_CHECK_LIB(pisock, pi_accept, [ PISOCK_LIBS="-lpisock -lpisync"],
+			[ AC_MSG_ERROR([Unable to find libpisock. Try http://www.pilot-link.org.]) ])
+	fi
+
+	AC_ARG_ENABLE([pilotlinktest],
+		AS_HELP_STRING([--enable-pilotlinktest],
+		[Test for correct version of pilot-link]),
+		[testplversion="$enableval"],[testplversion=yes]
+	)
+
+	if test x$piversion_include = x; then
+		piversion_include="pi-version.h"
+	fi
+
+	pi_major=`cat $incdir/pi-version.h|grep '#define PILOT_LINK_VERSION'|sed 's/#define PILOT_LINK_VERSION \([[0-9]]*\)/\1/'`
+	pi_minor=`cat $incdir/pi-version.h|grep '#define PILOT_LINK_MAJOR'|sed 's/#define PILOT_LINK_MAJOR \([[0-9]]*\)/\1/'`
+	pi_micro=`cat $incdir/pi-version.h|grep '#define PILOT_LINK_MINOR'|sed 's/#define PILOT_LINK_MINOR \([[0-9]]*\)/\1/'`
+	pi_patch=`cat $incdir/pi-version.h|grep '#define PILOT_LINK_PATCH'|sed 's/#define PILOT_LINK_PATCH \"\(.*\)\"/\1/'`
+
+	PILOT_LINK_MAJOR="$pi_major"
+	PILOT_LINK_MINOR="$pi_minor"
+	PILOT_LINK_MICRO="$pi_micro"
+	PILOT_LINK_PATCH="$pi_patch"
+	PILOT_LINK_VERSION="$pi_major.$pi_minor.$pi_micro$pi_patch"
+
+	if test x$testplversion = xyes; then
+		AC_MSG_CHECKING([for pilot-link version >= $1])
+		pl_ma=`echo $1|sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+		pl_mi=`echo $1|sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+		pl_mc=`echo $1|sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+		CFLAGS_save="$CFLAGS"
+		CFLAGS="$CFLAGS $PISOCK_CFLAGS"
+		AC_TRY_RUN(
+			[
+			#include <$piversion_include>
+			int main(int argc,char *argv[]) {
+				if (PILOT_LINK_VERSION == $pl_ma) {
+					if (PILOT_LINK_MAJOR == $pl_mi) {
+						if (PILOT_LINK_MINOR >= $pl_mc) {
+							return 0;
+							}
+					} else if (PILOT_LINK_MAJOR > $pl_mi) {
+						return 0;
+					}
+				} else if (PILOT_LINK_VERSION > $pl_ma) {
+					return 0;
+				}
+				return 1;
+			}
+			],
+			[AC_MSG_RESULT([yes (found $PILOT_LINK_VERSION)])],
+			[AC_MSG_ERROR([pilot-link >= $1 required])],
+			[AC_MSG_WARN([No action taken for crosscompile])]
+		)
+		CFLAGS="$CFLAGS_save"
+	fi
+
+	unset piversion_include
+	unset pi_verion
+	unset pi_major
+	unset pi_minor
+	unset pi_patch
+	unset incdir
+	unset pl_mi
+	unset pl_ma
+	unset pl_ve
+])
+
+AC_DEFUN([PILOT_LINK_CHECK],[
+	PILOT_LINK_HOOK($1,[],nofailure)
+])