+libgeos (#1598)

projects/libgeos.org/package.yml

@@ -0,0 +1,58 @@
+distributable:
+  url: https://github.com/libgeos/geos/releases/download/{{version}}/geos-{{version}}.tar.bz2
+  strip-components: 1
+
+versions:
+  github: libgeos/geos/releases/tags
+
+build:
+  dependencies:
+    tea.xyz/gx/cc: c99
+    tea.xyz/gx/make: '*'
+    cmake.org: '*'
+  working-directory: build
+  script: |
+    cmake .. $ARGS
+    make --jobs {{ hw.concurrency }} 
+    make install
+  env:
+    ARGS:
+      - -DCMAKE_BUILD_TYPE=Release
+      - -DCMAKE_INSTALL_PREFIX={{prefix}}
+
+
+provides:
+  - bin/geosop
+  - bin/geos-config
+
+test:
+  dependencies:
+    tea.xyz/gx/cc: c99
+  fixture: |
+    #include <stdio.h>
+    #include <stdarg.h>
+    #include <geos_c.h>
+    static void geos_message_handler(const char* fmt, ...) {
+        va_list ap;
+        va_start(ap, fmt);
+        vprintf (fmt, ap);
+        va_end(ap);
+    }
+    int main() {
+        initGEOS(geos_message_handler, geos_message_handler);
+        const char* wkt_a = "POLYGON((0 0, 10 0, 10 10, 0 10, 0 0))";
+        const char* wkt_b = "POLYGON((5 5, 15 5, 15 15, 5 15, 5 5))";
+        GEOSWKTReader* reader = GEOSWKTReader_create();
+        GEOSGeometry* geom_a = GEOSWKTReader_read(reader, wkt_a);
+        GEOSGeometry* geom_b = GEOSWKTReader_read(reader, wkt_b);
+        GEOSGeometry* inter = GEOSIntersection(geom_a, geom_b);
+        GEOSWKTWriter* writer = GEOSWKTWriter_create();
+        GEOSWKTWriter_setTrim(writer, 1);
+        char* wkt_inter = GEOSWKTWriter_write(writer, inter);
+        printf("Intersection(A, B): %s\\n", wkt_inter);
+        return 0;
+    }
+  script: |
+    mv $FIXTURE test.c
+    cc test.c -lgeos_c
+    ./a.out