OpenBLAS: enable build on Apple i386

closes: https://trac.macports.org/ticket/58263

math/OpenBLAS/Portfile

@@ -41,7 +41,8 @@ if {[string first "-devel" $subport] > 0} {
     conflicts       OpenBLAS
 
     patchfiles      patch-libnoarch.devel.diff \
-                    patch-linkLib.devel.diff
+                    patch-linkLib.devel.diff \
+                    patch-OpenBLAS-i386-Apple.diff
 
     github.livecheck.branch develop
 
@@ -57,7 +58,8 @@ if {[string first "-devel" $subport] > 0} {
     patchfiles      patch-libnoarch.release.diff \
                     patch-linkLib.release.diff  \
                     patch-darwin-powerpc.diff \
-                    patch-openblas-powermac970-fix.diff
+                    patch-openblas-powermac970-fix.diff \
+                    patch-OpenBLAS-i386-Apple.diff
 }
 
 compilers.choose    fc

math/OpenBLAS/files/patch-OpenBLAS-i386-Apple.diff

@@ -0,0 +1,23 @@
+diff --git cpuid_x86.c cpuid_x86.c
+index eb986b6..c5c02f5 100644
+--- cpuid_x86.c
++++ cpuid_x86.c
+@@ -87,10 +87,6 @@ void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, int *edx)
+
+ #ifndef CPUIDEMU
+
+-#if defined(__APPLE__) && defined(__i386__)
+-void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx);
+-void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, int *edx);
+-#else
+ static C_INLINE void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx){
+ #if defined(__i386__) && defined(__PIC__)
+   __asm__ __volatile__
+@@ -116,7 +112,6 @@ static C_INLINE void cpuid_count(int op, int count ,int *eax, int *ebx, int *ecx
+     ("cpuid": "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx) : "0" (op), "2" (count) : "cc");
+ #endif
+ }
+-#endif
+
+ #else
+