libtextstyle: Reexport isatty() override from gnulib.

This is necessary for programs that are compiled for native Windows and
run in a Cygwin console.

* libtextstyle/autogen.sh (GNULIB_MODULES): Add 'isatty'.
* libtextstyle/configure.ac: Set GNULIB_ISATTY to 0.
* libtextstyle/lib/textstyle.h (libtextstyle_isatty): New declaration.
(isatty): Redirect to libtextstyle_isatty.

diff --git a/libtextstyle/.gitignore b/libtextstyle/.gitignore
index fc318084275ac9fe3d4b78e0dacfdd89120b6a2d..c2b2a29a9bd006a5e73bc58ea0e41276051a0ed4 100644 (file)
--- a/libtextstyle/.gitignore
+++ b/libtextstyle/.gitignore
@@ -81,6 +81,7 @@
 /lib/iconv-ostream.oo.c
 /lib/iconv-ostream.oo.h
 /lib/intprops.h
+/lib/isatty.c
 /lib/isinf.c
 /lib/isnan.c
 /lib/isnand.c

diff --git a/libtextstyle/autogen.sh b/libtextstyle/autogen.sh
index 8fbe8d05f88caa05eb02bb6eca24cf4c2366d61f..d1980dfc4d1e8fbd5b4c5ccd171de51e7e23a513 100755 (executable)
--- a/libtextstyle/autogen.sh
+++ b/libtextstyle/autogen.sh
@@ -84,6 +84,7 @@ if test $skip_gnulib = false; then
         html-styled-ostream
         term-styled-ostream
       filename
+      isatty
       xalloc
       xconcat-filename
 

diff --git a/libtextstyle/configure.ac b/libtextstyle/configure.ac
index 922634053429c3c8fb3434ffd73bd1e7aebb8247..13c79fee82cf2a78463cbf935c57626d4dfb6593 100644 (file)
--- a/libtextstyle/configure.ac
+++ b/libtextstyle/configure.ac
@@ -70,6 +70,10 @@ dnl Checks for types, header files, functions and declarations.
 
 gl_INIT
 
+dnl Arrange that the gnulib-generated <unistd.h> does not declare isatty(). The
+dnl adhoc-tests want to get this declaration from <textstyle.h>, not <unistd.h>.
+GNULIB_ISATTY=0
+
 dnl Compilation on mingw and Cygwin needs special Makefile rules, because
 dnl 1. when we install a shared library, we must arrange to export
 dnl    auxiliary pointer variables for every exported variable,

diff --git a/libtextstyle/lib/textstyle.h b/libtextstyle/lib/textstyle.h
index f905fe6ccb4d42b66dbd525a1ea71c7f43036938..6f3d0de04cc7455c68477fcdd9cefaf6517dae59 100644 (file)
--- a/libtextstyle/lib/textstyle.h
+++ b/libtextstyle/lib/textstyle.h
@@ -530,6 +530,26 @@ extern void libtextstyle_set_failure_exit_code (int exit_code);
 }
 #endif
 
+/* ----------------------- Exported gnulib overrides ----------------------- */
+
+#if defined _WIN32 && ! defined __CYGWIN__
+
+# include <io.h>
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+extern int libtextstyle_isatty (int fd);
+# undef isatty
+# define isatty libtextstyle_isatty
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif
+
 /* ------------------------------------------------------------------------- */
 
 #endif /* _TEXTSTYLE_H */