community/polyml: add loongarch64 support

Patch backported from:https://github.com/polyml/polyml/pull/190

community/polyml/APKBUILD

@@ -11,7 +11,14 @@ license="LGPL-2.1-only"
 makedepends="gmp-dev libffi-dev"
 subpackages="$pkgname-dev $pkgname-doc"
 source="$pkgname-$pkgver.tar.gz::https://github.com/polyml/polyml/archive/v$pkgver.tar.gz
-	riscv64.patch"
+	riscv64.patch
+	add-support-to-loongarch64.patch"
+
+prepare() { 
+	default_prepare
+	update_config_sub
+	update_config_guess
+} 
 
 build() {
 	# Compiling poly as a dynamically linked position independent
@@ -41,4 +48,5 @@ package() {
 sha512sums="
 e471abef01b7f2bfac6d847904c0fcef6ae5a1356b1246a2e8982d24fd590b49feb03752642efe09d34344b4faf89bc3edd4418e9993e72ea22e5482e6d37271  polyml-5.9.1.tar.gz
 bf41a055b01ca9e5d1856e39f318079e23272eb034031cb97f7b7dbb94b981b6956baaba38d33c959e2175f052d4214dffd6f1fb18a69b8509013a19a93beb50  riscv64.patch
+eb8b2b390a8c210b180f9fcb6742c4d2a9938c5e720b3925690f0fb78058c15e65ef18af677d48fcdd4896c814978d9030f09280799f7426798b601fd2161ea6  add-support-to-loongarch64.patch
 "

community/polyml/add-support-to-loongarch64.patch

+diff --git a/config.h.in b/config.h.in
+index 8c98c2f..64a045e 100644
+--- a/config.h.in
++++ b/config.h.in
+@@ -466,6 +466,9 @@
+ /* Define if the host is an Itanium */
+ #undef HOSTARCHITECTURE_IA64
+ 
++/* Define if the host is a LoongArch (64-bit) */
++#undef HOSTARCHITECTURE_LOONGARCH64
++
+ /* Define if the host is a Motorola 68000 */
+ #undef HOSTARCHITECTURE_M68K
+ 
+diff --git a/configure b/configure
+index 5bc938b..454f223 100755
+--- a/configure
++++ b/configure
+@@ -23512,6 +23512,12 @@ printf "%s\n" "#define HOSTARCHITECTURE_RISCV32 1" >>confdefs.h
+ 
+ printf "%s\n" "#define HOSTARCHITECTURE_RISCV64 1" >>confdefs.h
+ 
++            polyarch=interpret
++            ;;
++      loongarch64)
++
++printf "%s\n" "#define HOSTARCHITECTURE_LOONGARCH64 1" >>confdefs.h
++
+             polyarch=interpret
+             ;;
+       *) as_fn_error $? "Poly/ML is not supported for this architecture" "$LINENO" 5 ;;
+diff --git a/configure.ac b/configure.ac
+index e48afb7..fc1d3ed 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -452,6 +452,10 @@ case "${host_cpu}" in
+             AC_DEFINE([HOSTARCHITECTURE_RISCV64], [1], [Define if the host is a RISC-V (64-bit)])
+             polyarch=interpret
+             ;;
++      loongarch64)
++            AC_DEFINE([HOSTARCHITECTURE_LOONGARCH64], [1], [Define if the host is a LoongArch (64-bit)])
++            polyarch=interpret
++            ;;
+       *) AC_MSG_ERROR([Poly/ML is not supported for this architecture]) ;;
+ esac
+ 
+diff --git a/libpolyml/elfexport.cpp b/libpolyml/elfexport.cpp
+index 13a2c43..ec16594 100644
+--- a/libpolyml/elfexport.cpp
++++ b/libpolyml/elfexport.cpp
+@@ -286,6 +286,21 @@
+ # endif
+ # define HOST_E_FLAGS (HOST_E_FLAGS_FLOAT_ABI | HOST_E_FLAGS_RVE)
+ # define USE_RELA 1
++#elif defined(HOSTARCHITECTURE_LOONGARCH64) 
++#  define HOST_E_MACHINE EM_LOONGARCH
++#  define HOST_DIRECT_DATA_RELOC R_LARCH_64
++#  define HOST_DIRECT_FPTR_RELOC R_LARCH_64
++# if defined(__loongarch_soft_float)
++#  define HOST_E_FLAGS_FLOAT_ABI EF_LARCH_ABI_SOFT_FLOAT
++# elif defined(__loongarch_single_float)
++#  define HOST_E_FLAGS_FLOAT_ABI EF_LARCH_ABI_SINGLE_FLOAT
++# elif defined(__loongarch_double_float)
++#  define HOST_E_FLAGS_FLOAT_ABI EF_LARCH_ABI_DOUBLE_FLOAT
++# else
++#  error "Unknown LoongArch float ABI"
++# endif
++# define HOST_E_FLAGS (HOST_E_FLAGS_FLOAT_ABI | EF_LARCH_OBJABI_V1)
++# define USE_RELA 1
+ #else
+ # error "No support for exporting on this architecture"
+ #endif