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configure.ac: adding check for dot binary

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Doxygen supports the creation of DOT graphics, but this depends on the
existence of the 'dot' binary on the build host. Adding a check for dot
and disable the support within the Doxygen file for DOT graphics if dot
can't be found.
This commit is contained in:
Carsten Schoenert authored and Olaf Bergmann committed 2015-03-03 19:21:43 +01:00
1 parent e68e506f45
commit 700753e1d2
2 files changed
+32 -3
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configure.ac
+30 -1
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@@ -119,6 +119,29 @@ if test "x$build_documentation" = "xyes"; then
# we found doxygen and the version is valid
DOC_DIR=doc
AC_SUBST(DOC_DIR)
# now checking dot (needed for graphics)
AC_PATH_PROG([DOT], [dot])
if test "x$DOT" = "x"; then
AC_MSG_WARN([==> dot not found - continuing without DOT support])
AC_MSG_WARN([==> The libcoap html documentation will be build without DOT graphics!])
HAVE_DOT="NO"
else
AC_MSG_CHECKING([for compatible dot version])
dot_version=`$DOT -V 2>&1|$GREP -oP '(?<=version\W)@<:@0-9.@:>@*(?=\W(.*))'`
AS_VERSION_COMPARE([$dot_version], [2.26.0],
[AC_MSG_RESULT([no])
DOT=""],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([yes])])
if test "x$DOT" = "x" -a "x$build_documentation" = "xyes"; then
AC_MSG_WARN([==> Graphviz dot $dot_version too old. Graphviz 2.26+ required for documentation build.])
AC_MSG_ERROR([==> Install required graphviz version or disable the documentation using --disable-documentation])
fi
# we found dot and the version is valid
HAVE_DOT="YES"
# exporting the test to doc/Doxygen(.in)
AC_SUBST(HAVE_DOT)
fi
fi
fi
fi
@@ -192,7 +215,13 @@ libcoap configuration summary:
libcoap API version : "$LIBCOAP_API_VERSION"
host system : "$host"]);
if test "x$build_documentation" = "xyes" -a "x$DOXYGEN" != "x"; then
AC_MSG_RESULT([ build documentation : "yes" ($DOXYGEN $doxygen_version)])
AC_MSG_RESULT([ build documentation : "yes"])
AC_MSG_RESULT([ --> Doxygen around : "yes" ($DOXYGEN $doxygen_version)])
if test "x$DOT" = "x"; then
AC_MSG_RESULT([ --> dot around : "no" (DOT not found!)])
else
AC_MSG_RESULT([ --> dot around : "yes" ($DOT $dot_version)])
fi
else
if test "x$build_documentation" = "xno"; then
AC_MSG_RESULT([ build documentation : "no"])
doc/Doxyfile.in
+2 -2
View File
@@ -2057,7 +2057,7 @@ PERL_PATH = /usr/bin/perl
# powerful graphs.
# The default value is: YES.
CLASS_DIAGRAMS = YES
CLASS_DIAGRAMS = @HAVE_DOT@
# You can define message sequence charts within doxygen comments using the \msc
# command. Doxygen will then run the mscgen tool (see:
@@ -2088,7 +2088,7 @@ HIDE_UNDOC_RELATIONS = YES
# set to NO
# The default value is: YES.
HAVE_DOT = YES
HAVE_DOT = @HAVE_DOT@
# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
# to run in parallel. When set to 0 doxygen will base this on the number of