new package: libblosc

packages/libblosc/0001-fix-posix-memalign.patch

@@ -0,0 +1,12 @@
+diff -uNr a/tests/test_common.h b/tests/test_common.h
+--- a/tests/test_common.h
++++ b/tests/test_common.h
+@@ -68,7 +68,7 @@
+ #elif defined(_WIN32)
+   /* A (void *) cast needed for avoiding a warning with MINGW :-/ */
+   block = (void *)_aligned_malloc(size, alignment);
+-#elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
++#elif (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) || defined(__ANDROID__)
+   /* Platform does have an implementation of posix_memalign */
+   res = posix_memalign(&block, alignment, size);
+ #elif defined(__APPLE__)

packages/libblosc/0002-do-not-link-against-librt.patch

@@ -0,0 +1,18 @@
+diff -uNr a/bench/CMakeLists.txt b/bench/CMakeLists.txt
+--- a/bench/CMakeLists.txt
++++ b/bench/CMakeLists.txt
+@@ -4,12 +4,12 @@
+ 
+ # targets
+ add_executable(bench ${SOURCES})
+-if(UNIX AND NOT APPLE AND NOT HAIKU)
++if(UNIX AND NOT APPLE AND NOT HAIKU AND NOT ANDROID)
+   # cmake is complaining about LINK_PRIVATE in original PR
+   # and removing it does not seem to hurt, so be it.
+   # target_link_libraries(bench LINK_PRIVATE rt)
+   target_link_libraries(bench rt)
+-endif(UNIX AND NOT APPLE AND NOT HAIKU)
++endif(UNIX AND NOT APPLE AND NOT HAIKU AND NOT ANDROID)
+ target_link_libraries(bench blosc_shared)
+ 
+ # have to copy blosc dlls on Windows

packages/libblosc/build.sh

@@ -0,0 +1,16 @@
+TERMUX_PKG_HOMEPAGE=https://www.blosc.org
+TERMUX_PKG_DESCRIPTION="A blocking, shuffling and loss-less compression library"
+TERMUX_PKG_LICENSE="BSD"
+TERMUX_PKG_LICENSE_FILE="\
+LICENSES/BITSHUFFLE.txt
+LICENSES/BLOSC.txt
+LICENSES/FASTLZ.txt
+LICENSES/LZ4.txt
+LICENSES/SNAPPY.txt
+LICENSES/STDINT.txt
+LICENSES/ZLIB.txt"
+TERMUX_PKG_MAINTAINER="@termux"
+TERMUX_PKG_VERSION=1.21.1
+TERMUX_PKG_SRCURL=https://github.com/Blosc/c-blosc/archive/refs/tags/v${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=f387149eab24efa01c308e4cba0f59f64ccae57292ec9c794002232f7903b55b
+TERMUX_PKG_DEPENDS="libsnappy, zstd"