diff --git a/srcpkgs/simgear/patches/musl-strerror_r.patch b/srcpkgs/simgear/patches/musl-strerror_r.patch
new file mode 100644
index 00000000000..67f5aa68334
--- /dev/null
+++ b/srcpkgs/simgear/patches/musl-strerror_r.patch
@@ -0,0 +1,25 @@
+--- simgear/misc/strutils.cxx	2016-05-17 10:36:36.000000000 +0200
++++ simgear/misc/strutils.cxx	2016-06-18 14:47:46.858731232 +0200
+@@ -613,8 +613,12 @@
+   errno_t retcode;
+   // Always makes the string in 'buf' null-terminated
+   retcode = strerror_s(buf, sizeof(buf), errnum);
+-#elif defined(_GNU_SOURCE)
++#elif defined(_GNU_SOURCE) && defined(__GLIBC__)
+   return std::string(strerror_r(errnum, buf, sizeof(buf)));
++#elif defined(_GNU_SOURCE)
++  int retcode;
++  // musl libc is posix compliant
++  retcode = strerror_r(errnum, buf, sizeof(buf));
+ #elif (_POSIX_C_SOURCE >= 200112L) || defined(SG_MAC)
+   int retcode;
+   // POSIX.1-2001 and POSIX.1-2008
+@@ -623,7 +627,7 @@
+ #error "Could not find a thread-safe alternative to strerror()."
+ #endif
+ 
+-#if !defined(_GNU_SOURCE)
++#if !defined(_GNU_SOURCE) || !defined(__GLIBC__)
+   if (retcode) {
+     std::string msg = "unable to get error message for a given error number";
+     // C++11 would make this shorter with std::to_string()
diff --git a/srcpkgs/simgear/patches/musl-u_types.patch b/srcpkgs/simgear/patches/musl-u_types.patch
new file mode 100644
index 00000000000..0050bab6d34
--- /dev/null
+++ b/srcpkgs/simgear/patches/musl-u_types.patch
@@ -0,0 +1,94 @@
+--- simgear/package/md5.h	2016-05-17 10:36:36.000000000 +0200
++++ simgear/package/md5.h	2016-06-18 14:38:16.524925475 +0200
+@@ -19,27 +19,23 @@
+  extern "C" {
+ #endif
+      
+-#if defined(_MSC_VER)
+-typedef unsigned char    u_int8_t;
+-typedef unsigned int     u_int32_t;
+-typedef unsigned __int64 u_int64_t;
+-#endif
++#include <stdint.h>
+      
+ #define	MD5_BLOCK_LENGTH		64
+ #define	MD5_DIGEST_LENGTH		16
+ #define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
+ 
+ typedef struct MD5Context {
+-	u_int32_t state[4];			/* state */
+-	u_int64_t count;			/* number of bits, mod 2^64 */
+-	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
++	uint32_t state[4];			/* state */
++	uint64_t count;			/* number of bits, mod 2^64 */
++	uint8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
+ } SG_MD5_CTX;
+ 
+ void	 SG_MD5Init(SG_MD5_CTX *);
+-void	 SG_MD5Update(SG_MD5_CTX *, const u_int8_t *, size_t);
++void	 SG_MD5Update(SG_MD5_CTX *, const uint8_t *, size_t);
+ void	 SG_MD5Pad(SG_MD5_CTX *);
+-void	 SG_MD5Final(u_int8_t [MD5_DIGEST_LENGTH], SG_MD5_CTX *);
+-void	 SG_MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH]);
++void	 SG_MD5Final(uint8_t [MD5_DIGEST_LENGTH], SG_MD5_CTX *);
++void	 SG_MD5Transform(uint32_t [4], const uint8_t [MD5_BLOCK_LENGTH]);
+ 
+ #ifdef __cplusplus
+ } // of extern C
+--- simgear/package/md5.c	2016-05-17 10:36:36.000000000 +0200
++++ simgear/package/md5.c	2016-06-18 14:38:25.150680387 +0200
+@@ -39,7 +39,7 @@
+ 	(cp)[1] = (value) >> 8;						\
+ 	(cp)[0] = (value); } while (0)
+ 
+-static u_int8_t PADDING[MD5_BLOCK_LENGTH] = {
++static uint8_t PADDING[MD5_BLOCK_LENGTH] = {
+ 	0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+@@ -73,7 +73,7 @@
+ 	need = MD5_BLOCK_LENGTH - have;
+ 
+ 	/* Update bitcount */
+-	ctx->count += (u_int64_t)len << 3;
++	ctx->count += (uint64_t)len << 3;
+ 
+ 	if (len >= need) {
+ 		if (have != 0) {
+@@ -104,7 +104,7 @@
+ void
+ SG_MD5Pad(SG_MD5_CTX *ctx)
+ {
+-	u_int8_t count[8];
++	uint8_t count[8];
+ 	size_t padlen;
+ 
+ 	/* Convert count to 8 bytes in little endian order. */
+@@ -154,20 +154,20 @@
+  * the data and converts bytes into longwords for this routine.
+  */
+ void
+-SG_MD5Transform(u_int32_t state[4], const u_int8_t block[MD5_BLOCK_LENGTH])
++SG_MD5Transform(uint32_t state[4], const uint8_t block[MD5_BLOCK_LENGTH])
+ {
+-	u_int32_t a, b, c, d, in[MD5_BLOCK_LENGTH / 4];
++	uint32_t a, b, c, d, in[MD5_BLOCK_LENGTH / 4];
+ 
+ #if ((defined(__BYTE_ORDER__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__) || \
+ defined(_M_IX86) || defined(_M_X64) || defined(_M_ARM) )
+ 	memcpy(in, block, sizeof(in));
+ #else
+ 	for (a = 0; a < MD5_BLOCK_LENGTH / 4; a++) {
+-		in[a] = (u_int32_t)(
+-		    (u_int32_t)(block[a * 4 + 0]) |
+-		    (u_int32_t)(block[a * 4 + 1]) <<  8 |
+-		    (u_int32_t)(block[a * 4 + 2]) << 16 |
+-		    (u_int32_t)(block[a * 4 + 3]) << 24);
++		in[a] = (uint32_t)(
++		    (uint32_t)(block[a * 4 + 0]) |
++		    (uint32_t)(block[a * 4 + 1]) <<  8 |
++		    (uint32_t)(block[a * 4 + 2]) << 16 |
++		    (uint32_t)(block[a * 4 + 3]) << 24);
+ 	}
+ #endif
+ 
diff --git a/srcpkgs/simgear/template b/srcpkgs/simgear/template
index 814b52a7d46..7155f0651bc 100644
--- a/srcpkgs/simgear/template
+++ b/srcpkgs/simgear/template
@@ -4,19 +4,13 @@ version=2016.2.1
 revision=2
 # XXX: always keep in sync with flightgear version!
 build_style=cmake
-configure_args="-DENABLE_TESTS=OFF $(vopt_if svn '-DENABLE_LIBSVN=ON' '-DENABLE_LIBSVN=OFF')"
+configure_args="-DENABLE_TESTS=OFF"
 hostmakedepends="cmake pkg-config"
-makedepends="boost-devel expat-devel freetype-devel libjpeg-turbo-devel giflib-devel
- libopenal-devel osg-devel plib-devel $(vopt_if svn libsvn)"
+makedepends="boost-devel freetype-devel libjpeg-turbo-devel giflib-devel
+ libcurl-devel libfreeglut-devel libopenal-devel osg-devel plib-devel"
 short_desc="Simulation engine for FlightGear - static libraries"
 maintainer="Jürgen Buchmüller <pullmoll@t-online.de>"
 license="GPL-2"
 homepage="http://www.flightgear.org/"
 distfiles="$SOURCEFORGE_SITE/project/flightgear/release-${version%.*}/${pkgname}-${version}.tar.bz2"
 checksum=601d4ef75a7f9e7012f85d6f63219f3e2ef90f98249eaa5d16cc6b1a3c737a0a
-
-build_options="svn"
-desc_option_svn="Enable support for subversion scenery fetching"
-if [ -z "$CROSS_BUILD" ]; then
-	build_options_default="svn"
-fi