Building premake5 for Windows XP

[matsunomi-cell]

Are there those who are interested in running premake5 on WIndows XP?

at Premake 5.0.0-alpha12 released(official) "premake5.exe" could be run on the Windows XP.
But, after alpha13 or later could not.

So, I tried to build premake5 for Windows XP using Visual Studio 2015.
(so, I manually changed some project settings to use v140_xp tool-set and so on.)

and then, I noticed that os.mkdir does not properly working.
for example --to=somewhere option was not working.

and, I do some research. and, after that I noticed...
stat function (which is used in the do_mkdir function in "os_mkdir.c") returns an error. with errno set to EINVAL.

which happens when slash charactor was used for path separator.
and, which happens on static CRT only.
the DLL version of the CRT works fine.

and also, Visual Studio 2013 works fine with static CRT.
So, I'm now using premake5beta6 built with VS2013.

Thank you for the Great tool!

English is not my native language. So my English may be weird.

[matsunomi-cell]

in addition

In compiling by VS2013, this is the patch which was needed.

patch_for_VC2013.txt

[matsunomi-cell]

I thought the text file will be displayed.
Below is the patch contents.

Index: src/host/premake.h
===================================================================
--- src/host/premake.h
+++ src/host/premake.h
@@ -207,6 +207,12 @@
 int zip_extract(lua_State* L);
 #endif
 
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#ifndef snprintf
+#define snprintf _snprintf
+#endif
+#endif
+
 /* Engine interface */
 
 typedef struct
Index: src/host/os_linkdir.c
===================================================================
--- src/host/os_linkdir.c
+++ src/host/os_linkdir.c
@@ -10,6 +10,25 @@
 int do_linkdir(lua_State* L, const char* src, const char* dst)
 {
 #if PLATFORM_WINDOWS
+#ifndef SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE
+	(void)L;
+	(void)src;
+	(void)dst;
+	return 0;
+#else
+	HINSTANCE hKernel32;
+	typedef BOOLEAN(APIENTRY *tCreateSymbolicLinkW)(LPCWSTR lpSymlinkFileName, LPCWSTR lpTargetFileName, DWORD dwFlags);
+	tCreateSymbolicLinkW pCreateSymbolicLinkW;
+
+	hKernel32 = GetModuleHandle(TEXT("Kernel32"));
+	if (hKernel32 == NULL){
+		return 0;
+	}
+	pCreateSymbolicLinkW = (tCreateSymbolicLinkW)GetProcAddress(hKernel32, "CreateSymbolicLinkW");
+	if (pCreateSymbolicLinkW == NULL){
+		return 0;
+	}
+
     // Prepend the drive letter if a relative path is given
     char dstPath[MAX_PATH];
 	char srcPath[MAX_PATH];
@@ -38,14 +57,15 @@
 		swprintf(relSrcPath, MAX_PATH + 2, L"%c:%s", cwd[0], wSrcPath);
 		relSrcPath[MAX_PATH + 1] = L'\0';
 
-		BOOLEAN res = CreateSymbolicLinkW(wDstPath, relSrcPath, SYMBOLIC_LINK_FLAG_DIRECTORY | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
+		BOOLEAN res = (*pCreateSymbolicLinkW)(wDstPath, relSrcPath, SYMBOLIC_LINK_FLAG_DIRECTORY | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
 		return res != 0;
 	}
 	else
 	{
-		BOOLEAN res = CreateSymbolicLinkW(wDstPath, wSrcPath, SYMBOLIC_LINK_FLAG_DIRECTORY | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
+		BOOLEAN res = (*pCreateSymbolicLinkW)(wDstPath, wSrcPath, SYMBOLIC_LINK_FLAG_DIRECTORY | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
 		return res != 0;
 	}
+#endif
 #else
 	(void)L;
 	if (!do_isabsolute(src))
Index: src/host/os_linkfile.c
===================================================================
--- src/host/os_linkfile.c
+++ src/host/os_linkfile.c
@@ -10,7 +10,26 @@
 int do_linkfile(lua_State* L, const char* src, const char* dst)
 {
 #if PLATFORM_WINDOWS
-    char dstPath[MAX_PATH];
+#ifndef SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE
+	(void)L;
+	(void)src;
+	(void)dst;
+	return 0;
+#else
+	HINSTANCE hKernel32;
+	typedef BOOLEAN(APIENTRY *tCreateSymbolicLinkW)(LPCWSTR lpSymlinkFileName, LPCWSTR lpTargetFileName, DWORD dwFlags);
+	tCreateSymbolicLinkW pCreateSymbolicLinkW;
+
+	hKernel32 = GetModuleHandle(TEXT("Kernel32"));
+	if (hKernel32 == NULL){
+		return 0;
+	}
+	pCreateSymbolicLinkW = (tCreateSymbolicLinkW)GetProcAddress(hKernel32, "CreateSymbolicLinkW");
+	if (pCreateSymbolicLinkW == NULL){
+		return 0;
+	}
+
+	char dstPath[MAX_PATH];
 	char srcPath[MAX_PATH];
 
 	do_normalize(L, srcPath, src);
@@ -37,14 +56,15 @@
 		swprintf(relSrcPath, MAX_PATH + 2, L"%c:%s", cwd[0], wSrcPath);
 		relSrcPath[MAX_PATH + 1] = L'\0';
 
-		BOOLEAN res = CreateSymbolicLinkW(wDstPath, relSrcPath, SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
+		BOOLEAN res = (*pCreateSymbolicLinkW)(wDstPath, relSrcPath, SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
 		return res != 0;
 	}
 	else
 	{
-		BOOLEAN res = CreateSymbolicLinkW(wDstPath, wSrcPath, SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
+		BOOLEAN res = (*pCreateSymbolicLinkW)(wDstPath, wSrcPath, SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE);
 		return res != 0;
 	}
+#endif
 #else
 	(void)L;
 	if (!do_isabsolute(src))