83 lines
3.0 KiB
Diff
83 lines
3.0 KiB
Diff
From 1a5f889bdb136397b64e25311ad68c93806b3bea Mon Sep 17 00:00:00 2001
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From: Christoph Reiter <reiter.christoph@gmail.com>
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Date: Sun, 3 Jul 2022 22:39:32 +0200
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Subject: [PATCH 33/N] uname: allow setting the system name to CYGWIN
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We are currently trying to move our cygwin build environment closer
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to cygwin and some autotools/bash based build systems call "uname -s"
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to figure out the OS and in many cases only handle the cygwin case, so
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we have to patch them.
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With this instead of patching we can set MSYSTEM=CYGWIN and change
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uname output that way.
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The next step would be to always output CYGWIN in an msys env by default,
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but for now this allows us to get rid of all the patches without
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affecting users.
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---
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winsup/cygwin/uname.cc | 36 ++++++++++++++++++++++--------------
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1 file changed, 22 insertions(+), 14 deletions(-)
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diff --git a/winsup/cygwin/uname.cc b/winsup/cygwin/uname.cc
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index daed73f..f6a5f88 100644
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--- a/winsup/cygwin/uname.cc
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+++ b/winsup/cygwin/uname.cc
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@@ -23,6 +23,24 @@ extern "C" int getdomainname (char *__name, size_t __len);
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#define ATTRIBUTE_NONSTRING
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#endif
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+static const char*
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+get_sysname()
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+{
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+#ifdef __MSYS__
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+ char* msystem = getenv("MSYSTEM");
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+ if (!msystem || strcmp(msystem, "MSYS") == 0)
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+ return "MSYS";
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+ else if (strcmp(msystem, "CYGWIN") == 0)
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+ return "CYGWIN";
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+ else if (strstr(msystem, "32") != NULL)
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+ return "MINGW32";
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+ else
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+ return "MINGW64";
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+#else
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+ return "CYGWIN";
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+#endif
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+}
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+
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/* uname: POSIX 4.4.1.1 */
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/* New entrypoint for applications since API 335 */
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@@ -36,12 +54,9 @@ uname_x (struct utsname *name)
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memset (name, 0, sizeof (*name));
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/* sysname */
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- char* msystem = getenv("MSYSTEM");
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- const char* msystem_sysname = "MSYS";
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- if (msystem != NULL && *msystem && strcmp(msystem, "MSYS") != 0)
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- msystem_sysname = (strstr(msystem, "32") != NULL) ? "MINGW32" : "MINGW64";;
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+ const char* sysname = get_sysname();
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__small_sprintf (name->sysname, "%s_%s-%u%s",
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- msystem_sysname,
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+ sysname,
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wincap.osname (), wincap.build_number (),
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wincap.is_wow64 () ? "-WOW64" : "");
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/* nodename */
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@@ -103,15 +118,8 @@ uname (struct utsname *in_name)
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char *snp = strstr (cygwin_version.dll_build_date, "SNP");
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memset (name, 0, sizeof (*name));
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-#ifdef __MSYS__
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- char* msystem = getenv("MSYSTEM");
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- const char* msystem_sysname = "MSYS";
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- if (msystem != NULL && *msystem && strcmp(msystem, "MSYS") != 0)
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- msystem_sysname = (strstr(msystem, "32") != NULL) ? "MINGW32" : "MINGW64";
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- __small_sprintf (name->sysname, "%s_%s", msystem_sysname, wincap.osname ());
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-#else
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- __small_sprintf (name->sysname, "CYGWIN_%s", wincap.osname ());
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-#endif
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+ const char* sysname = get_sysname();
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+ __small_sprintf (name->sysname, "%s_%s", sysname, wincap.osname ());
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/* Add a hint to the sysname, that we're running under WOW64. This might
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give an early clue if somebody encounters problems. */
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