might actually work...

deps/Makefile

@@ -111,6 +111,8 @@ ifeq ($(USE_SYSTEM_LIBSSH2), 0)
 DEP_LIBS += libssh2
 endif
 
+DEP_LIBS += nghttp2
+
 ifeq ($(USE_SYSTEM_CURL), 0)
 DEP_LIBS += curl
 endif
@@ -176,7 +178,7 @@ install: $(addprefix install-, $(DEP_LIBS))
 cleanall: $(addprefix clean-, $(DEP_LIBS))
 distcleanall: $(addprefix distclean-, $(DEP_LIBS))
 	rm -rf $(build_prefix)
-getall: get-llvm get-libuv get-pcre get-openlibm get-dsfmt get-openblas get-lapack get-suitesparse get-unwind get-osxunwind get-gmp get-mpfr get-patchelf get-utf8proc get-objconv get-mbedtls get-libssh2 get-curl get-libgit2 get-libwhich
+getall: get-llvm get-libuv get-pcre get-openlibm get-dsfmt get-openblas get-lapack get-suitesparse get-unwind get-osxunwind get-gmp get-mpfr get-patchelf get-utf8proc get-objconv get-mbedtls get-libssh2 get-nghttp2 get-curl get-libgit2 get-libwhich
 
 include $(SRCDIR)/llvm.mk
 include $(SRCDIR)/libuv.mk
@@ -193,6 +195,7 @@ include $(SRCDIR)/mpfr.mk
 include $(SRCDIR)/patchelf.mk
 include $(SRCDIR)/mbedtls.mk
 include $(SRCDIR)/libssh2.mk
+include $(SRCDIR)/nghttp2.mk
 include $(SRCDIR)/curl.mk
 include $(SRCDIR)/libgit2.mk
 include $(SRCDIR)/libwhich.mk

deps/Versions.make

@@ -20,12 +20,14 @@ GMP_BB_REL = 1
 MPFR_VER = 4.1.0
 MPFR_BB_REL = 1
 PATCHELF_VER = 0.9
-MBEDTLS_VER = 2.16.0
-MBEDTLS_BB_REL = 1
+MBEDTLS_VER = 2.16.8
+MBEDTLS_BB_REL = 0
 LIBSSH2_VER = 1.9.0
 LIBSSH2_BB_REL = 1
-CURL_VER = 7.66.0
-CURL_BB_REL = 1
+CURL_VER = 7.71.1
+CURL_BB_REL = 0
+NGHTTP2_VER = 1.40.0
+NGHTTP2_BB_REL = 2
 LIBGIT2_VER = 1.0.1
 LIBGIT2_BB_REL = 0
 LIBUV_VER = 1.29.1

deps/checksums/LibCURL.v7.71.1-0.x86_64-apple-darwin14.tar.gz/md5

@@ -0,0 +1 @@
+756ae7b6f45d27ca91f0d3f0b1b912ed

deps/checksums/LibCURL.v7.71.1-0.x86_64-apple-darwin14.tar.gz/sha512

@@ -0,0 +1 @@
+ec0442d72fa08d589097521b82360f154d54c51f37702b887ee9a8d9e36c189d66b146f7a7d981c0483def3a5b0cb2f5f1363b56f1cf911a53b62e33c776a2c3

deps/checksums/MbedTLS.v2.16.8-0.x86_64-apple-darwin14.tar.gz/md5

@@ -0,0 +1 @@
+2e2027f20798fb0ac1d6a40031024285

deps/checksums/MbedTLS.v2.16.8-0.x86_64-apple-darwin14.tar.gz/sha512

@@ -0,0 +1 @@
+41c2f309064367f95080f2d1826e84716645e763490c50c7e61eb1616a00dd73f36e203eb56f3814fc99dec0b3adf2fc5f73c5daf63a2ebff522dac39327e5d4

deps/checksums/nghttp2.v1.40.0-2.x86_64-apple-darwin14.tar.gz/md5

@@ -0,0 +1 @@
+4f2f8a58e8f9fd650493b500bc4b7303

deps/checksums/nghttp2.v1.40.0-2.x86_64-apple-darwin14.tar.gz/sha512

@@ -0,0 +1 @@
+581a34923b00cefa52c5abb20f672b399094ac984a53794484b431095497319942fab4e8ca87049c9ed11292f60d4eb996ba5fe3ac0d9aa769c73e07022f50da

deps/nghttp2.mk

@@ -0,0 +1,6 @@
+## nghttp2
+
+NGHTTP2_BB_URL_BASE := https://github.com/JuliaBinaryWrappers/nghttp2_jll.jl/releases/download/nghttp2-v$(NGHTTP2_VER)+$(NGHTTP2_BB_REL)
+NGHTTP2_BB_NAME := nghttp2.v$(NGHTTP2_VER)
+
+$(eval $(call bb-install,nghttp2,NGHTTP2,false))

stdlib/Downloads.version

@@ -1,2 +1,2 @@
-DOWNLOADS_BRANCH = sk/fix-julia1.6-win64
-DOWNLOADS_SHA1 = a94c2d235862e3f2a54f71320aaf1b6578c2bd31
+DOWNLOADS_BRANCH = master
+DOWNLOADS_SHA1 = a551ad833039bed15a4ef3a173c40b8aaf35aa0e

stdlib/LibCURL_jll/src/LibCURL_jll.jl

@@ -13,14 +13,18 @@ libcurl_handle = C_NULL
 libcurl_path = ""
 
 if Sys.iswindows()
+    const libnghttp2 = "libnghttp2-14.dll"
     const libcurl = "libcurl-4.dll"
 elseif Sys.isapple()
+    const libnghttp2 = "libnghttp2.14.dylib"
     const libcurl = "libcurl.4.dylib"
 else
+    const libnghttp2 = "libnghttp2.so"
     const libcurl = "libcurl.so"
 end
 
 function __init__()
+    dlopen(libnghttp2)
     global libcurl_handle = dlopen(libcurl)
     global libcurl_path = dlpath(libcurl_handle)
 end