>> Try following patch.
--- configure.ac.orig 2014-08-31 00:33:45.000000000 +0900
+++ configure.ac 2020-01-07 08:43:59.559103700 +0900
@@ -45,10 +45,10 @@
AC_MSG_CHECKING(if ${CXX} supports -std=c++0x)
old_cxxflags="$CXXFLAGS"
old_cppflags="$CPPFLAGS"
-CXXFLAGS="$CXXFLAGS -std=c++0x"
-CPPFLAGS="$CPPFLAGS -std=c++0x"
+CXXFLAGS="$CXXFLAGS -D_XOPEN_SOURCE=700"
+CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=700"
AC_TRY_COMPILE([], [], [
- CX0FLAGS="-std=c++0x"
+ CX0FLAGS=""
AC_MSG_RESULT(yes)
], [
CX0FLAGS=""
Thank you! This patch enabled compilation of the grap-1.45 executable for
32-bit and 64-bit Cygwin respectively.
Fergus
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