lang/ruby{27,30,31,32}: Improve qsort_r() detection.

This change merges the following upstream pull request into the Ruby
interpreter:

	https://github.com/ruby/ruby/pull/6332

Adding this patch is no-op right now because we are not using POSIX (GNU)
qsort_r(3) interface yet. It will fix build when the change is applied.

Reviewed by:	bapt (portmgr@), sunpoet (ruby@)
PR:		ports/266227
MFH:		2022Q3
Differential Revision: https://reviews.freebsd.org/D36492

(cherry picked from commit b4b8c98857e409dd294fd58680cd05ae71893261)

4 files changed, 116 insertions, 0 deletions

diff --git a/lang/ruby27/files/patch-util.c b/lang/ruby27/files/patch-util.c
new file mode 100644
index 000000000000..34686785879f
--- /dev/null
+++ b/lang/ruby27/files/patch-util.c
@@ -0,0 +1,29 @@
+--- util.c.orig	2022-04-12 11:25:48 UTC
++++ util.c
+@@ -210,6 +210,7 @@ typedef int (cmpfunc_t)(const void*, const void*, void
+ 
+ typedef int (cmpfunc_t)(const void*, const void*, void*);
+ 
++#if !defined HAVE_GNU_QSORT_R
+ #if defined HAVE_QSORT_S && defined RUBY_MSVCRT_VERSION
+ /* In contrast to its name, Visual Studio qsort_s is incompatible with
+  * C11 in the order of the comparison function's arguments, and same
+@@ -255,7 +256,7 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     qsort_s(base, nel, size, cmp, d);
+ }
+ # define HAVE_GNU_QSORT_R 1
+-#elif !defined HAVE_GNU_QSORT_R
++#else
+ /* mm.c */
+ 
+ #define mmtype long
+@@ -521,7 +522,8 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     else goto nxt;                         /* need not to sort both sides */
+   }
+ }
+-#endif /* HAVE_GNU_QSORT_R */
++#endif
++#endif /* !HAVE_GNU_QSORT_R */
+ 
+ char *
+ ruby_strdup(const char *str)
diff --git a/lang/ruby30/files/patch-util.c b/lang/ruby30/files/patch-util.c
new file mode 100644
index 000000000000..f454ef14eb0d
--- /dev/null
+++ b/lang/ruby30/files/patch-util.c
@@ -0,0 +1,29 @@
+--- util.c.orig	2022-04-12 11:48:55 UTC
++++ util.c
+@@ -214,6 +214,7 @@ typedef int (cmpfunc_t)(const void*, const void*, void
+ 
+ typedef int (cmpfunc_t)(const void*, const void*, void*);
+ 
++#if !defined HAVE_GNU_QSORT_R
+ #if defined HAVE_QSORT_S && defined RUBY_MSVCRT_VERSION
+ /* In contrast to its name, Visual Studio qsort_s is incompatible with
+  * C11 in the order of the comparison function's arguments, and same
+@@ -259,7 +260,7 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     qsort_s(base, nel, size, cmp, d);
+ }
+ # define HAVE_GNU_QSORT_R 1
+-#elif !defined HAVE_GNU_QSORT_R
++#else
+ /* mm.c */
+ 
+ #define mmtype long
+@@ -525,7 +526,8 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     else goto nxt;                         /* need not to sort both sides */
+   }
+ }
+-#endif /* HAVE_GNU_QSORT_R */
++#endif
++#endif /* !HAVE_GNU_QSORT_R */
+ 
+ char *
+ ruby_strdup(const char *str)
diff --git a/lang/ruby31/files/patch-util.c b/lang/ruby31/files/patch-util.c
new file mode 100644
index 000000000000..65701973aaee
--- /dev/null
+++ b/lang/ruby31/files/patch-util.c
@@ -0,0 +1,29 @@
+--- util.c.orig	2022-04-12 11:11:15 UTC
++++ util.c
+@@ -218,6 +218,7 @@ typedef int (cmpfunc_t)(const void*, const void*, void
+ 
+ typedef int (cmpfunc_t)(const void*, const void*, void*);
+ 
++#if !defined HAVE_GNU_QSORT_R
+ #if defined HAVE_QSORT_S && defined RUBY_MSVCRT_VERSION
+ /* In contrast to its name, Visual Studio qsort_s is incompatible with
+  * C11 in the order of the comparison function's arguments, and same
+@@ -263,7 +264,7 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     qsort_s(base, nel, size, cmp, d);
+ }
+ # define HAVE_GNU_QSORT_R 1
+-#elif !defined HAVE_GNU_QSORT_R
++#else
+ /* mm.c */
+ 
+ #define mmtype long
+@@ -530,7 +531,8 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     else goto nxt;                         /* need not to sort both sides */
+   }
+ }
+-#endif /* HAVE_GNU_QSORT_R */
++#endif
++#endif /* !HAVE_GNU_QSORT_R */
+ 
+ char *
+ ruby_strdup(const char *str)
diff --git a/lang/ruby32/files/patch-util.c b/lang/ruby32/files/patch-util.c
new file mode 100644
index 000000000000..f454ef14eb0d
--- /dev/null
+++ b/lang/ruby32/files/patch-util.c
@@ -0,0 +1,29 @@
+--- util.c.orig	2022-04-12 11:48:55 UTC
++++ util.c
+@@ -214,6 +214,7 @@ typedef int (cmpfunc_t)(const void*, const void*, void
+ 
+ typedef int (cmpfunc_t)(const void*, const void*, void*);
+ 
++#if !defined HAVE_GNU_QSORT_R
+ #if defined HAVE_QSORT_S && defined RUBY_MSVCRT_VERSION
+ /* In contrast to its name, Visual Studio qsort_s is incompatible with
+  * C11 in the order of the comparison function's arguments, and same
+@@ -259,7 +260,7 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     qsort_s(base, nel, size, cmp, d);
+ }
+ # define HAVE_GNU_QSORT_R 1
+-#elif !defined HAVE_GNU_QSORT_R
++#else
+ /* mm.c */
+ 
+ #define mmtype long
+@@ -525,7 +526,8 @@ ruby_qsort(void* base, const size_t nel, const size_t 
+     else goto nxt;                         /* need not to sort both sides */
+   }
+ }
+-#endif /* HAVE_GNU_QSORT_R */
++#endif
++#endif /* !HAVE_GNU_QSORT_R */
+ 
+ char *
+ ruby_strdup(const char *str)