issue #6880 mscgen links placed in the wrong place when using SVG output

1 files changed, 76 insertions, 0 deletions

diff --git a/libmscgen/gdhelpers.h b/libmscgen/gdhelpers.h
new file mode 100644
index 0000000..2a96b8b
--- /dev/null
+++ b/libmscgen/gdhelpers.h
@@ -0,0 +1,76 @@
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef GDHELPERS_H
+#define GDHELPERS_H 1
+
+	/* sys/types.h is needed for size_t on Sparc-SunOS-4.1 */
+#ifndef _WIN32_WCE
+#include <sys/types.h>
+#else
+#include <stdlib.h>
+#endif /* _WIN32_WCE */
+
+	/* TBB: strtok_r is not universal; provide an implementation of it. */
+
+	char * gd_strtok_r (char *s, char *sep, char **state);
+
+	/* These functions wrap memory management. gdFree is
+		in gd.h, where callers can utilize it to correctly
+		free memory allocated by these functions with the
+		right version of free(). */
+	void *gdCalloc (size_t nmemb, size_t size);
+	void *gdMalloc (size_t size);
+	void *gdRealloc (void *ptr, size_t size);
+	/* The extended version of gdReallocEx will free *ptr if the
+	 * realloc fails */
+	void *gdReallocEx (void *ptr, size_t size);
+
+	/* Returns nonzero if multiplying the two quantities will
+		result in integer overflow. Also returns nonzero if
+		either quantity is negative. By Phil Knirsch based on
+		netpbm fixes by Alan Cox. */
+
+	int overflow2(int a, int b);
+
+	/* 2.0.16: portable mutex support for thread safety. */
+#if defined(CPP_SHARP)
+# define gdMutexDeclare(x)
+# define gdMutexSetup(x)
+# define gdMutexShutdown(x)
+# define gdMutexLock(x)
+# define gdMutexUnlock(x)
+#elif defined(_WIN32)
+	/* 2.0.18: must include windows.h to get CRITICAL_SECTION. */
+# include <windows.h>
+# define gdMutexDeclare(x) CRITICAL_SECTION x
+# define gdMutexSetup(x) InitializeCriticalSection(&x)
+# define gdMutexShutdown(x) DeleteCriticalSection(&x)
+# define gdMutexLock(x) EnterCriticalSection(&x)
+# define gdMutexUnlock(x) LeaveCriticalSection(&x)
+#elif defined(HAVE_PTHREAD)
+# include <pthread.h>
+# define gdMutexDeclare(x) pthread_mutex_t x
+# define gdMutexSetup(x) pthread_mutex_init(&x, 0)
+# define gdMutexShutdown(x) pthread_mutex_destroy(&x)
+# define gdMutexLock(x) pthread_mutex_lock(&x)
+# define gdMutexUnlock(x) pthread_mutex_unlock(&x)
+#else
+# define gdMutexDeclare(x)
+# define gdMutexSetup(x)
+# define gdMutexShutdown(x)
+# define gdMutexLock(x)
+# define gdMutexUnlock(x)
+#endif /* _WIN32 || HAVE_PTHREAD */
+
+#define DPCM2DPI(dpcm) (unsigned int)((dpcm)*2.54 + 0.5)
+#define DPM2DPI(dpm)   (unsigned int)((dpm)*0.0254 + 0.5)
+#define DPI2DPCM(dpi)  (unsigned int)((dpi)/2.54 + 0.5)
+#define DPI2DPM(dpi)   (unsigned int)((dpi)/0.0254 + 0.5)
+
+#endif /* GDHELPERS_H */
+
+#ifdef __cplusplus
+}
+#endif