depends: add gmp package

depends/packages/gmp.mk

@@ -0,0 +1,30 @@
+package=gmp
+$(package)_version=6.0.0a
+$(package)_download_path=https://gmplib.org/download/gmp
+$(package)_file_name=$(package)-$($(package)_version).tar.bz2
+$(package)_sha256_hash=7f8e9a804b9c6d07164cf754207be838ece1219425d64e28cfa3e70d5c759aaf
+$(package)_patches=arm_gmp_build_fix.patch darwin_gmp_build_fix.patch
+
+define $(package)_preprocess_cmds
+  patch -p1 < $($(package)_patch_dir)/arm_gmp_build_fix.patch && \
+  patch -p1 < $($(package)_patch_dir)/darwin_gmp_build_fix.patch
+endef
+
+define $(package)_set_vars
+  $(package)_config_opts=--disable-shared CC_FOR_BUILD=$(build_CC)
+  $(package)_config_opts_x86_64_darwin=--with-pic
+  $(package)_config_opts_x86_64_linux=--with-pic
+  $(package)_config_opts_arm_linux=--with-pic
+endef
+
+define $(package)_config_cmds
+  $($(package)_autoconf)
+endef
+
+define $(package)_build_cmds
+  $(MAKE)
+endef
+
+define $(package)_stage_cmds
+  $(MAKE) DESTDIR=$($(package)_staging_dir) install
+endef

depends/packages/packages.mk

@@ -1,4 +1,4 @@
-packages:=boost openssl
+packages:=boost openssl gmp
 native_packages := native_ccache native_comparisontool
 
 qt_native_packages = native_protobuf