Merge remote-tracking branch 'origin/master' into sparse-find-next

This fixes a few merge conflicts resulting from other additions to
the sparse codebase.

.github/SUPPORT.md

@@ -0,0 +1,12 @@
+# Getting support for Julia
+
+We use the GitHub issue tracker for bug reports and feature requests only. If
+what you'd like to do is best described as a bug report or a code contribution
+then you should submit a GitHub issue or pull request as usual. Please see our
+[Notes for Julia
+Contributors](https://github.com/JuliaLang/julia/blob/master/CONTRIBUTING.md)
+for how to file a bug report, our contributor checklist and other helpful
+information. But if you have come here for help, or if you are unsure whether
+the behavior you're experiencing is a bug, then you should see our [Community
+page](https://julialang.org/community/) for a list of other places where you can
+get support first.

.travis.yml

@@ -1,33 +1,41 @@
 language: cpp
-sudo: false
+sudo: required
 dist: trusty
 matrix:
   include:
     - os: linux
       env: ARCH="i686"
-      compiler: "g++ -m32"
+      compiler: "g++-5 -m32"
       addons:
         apt:
+          sources:
+            - ubuntu-toolchain-r-test
           packages:
             - libssl1.0.0
             - bar
             - time
-            - gcc-multilib
-            - g++-multilib
+            - binutils
+            - gcc-5
+            - g++-5
+            - gcc-5-multilib
+            - g++-5-multilib
             - make:i386
             - libssl-dev:i386
-            - gfortran
-            - gfortran-multilib
+            - gfortran-5
+            - gfortran-5-multilib
     - os: linux
       env: ARCH="x86_64"
-      compiler: "g++ -m64"
+      compiler: "g++-5 -m64"
       addons:
         apt:
+          sources:
+            - ubuntu-toolchain-r-test
           packages:
             - libssl1.0.0
             - bar
             - time
-            - gfortran
+            - g++-5
+            - gfortran-5
     - os: osx
       env: ARCH="x86_64"
       osx_image: xcode8
@@ -56,10 +64,19 @@ before_install:
     - make check-whitespace
     - if [ `uname` = "Linux" ]; then
         contrib/travis_fastfail.sh || exit 1;
+        mkdir -p $HOME/bin;
+        ln -s /usr/bin/gcc-5 $HOME/bin/gcc;
+        ln -s /usr/bin/g++-5 $HOME/bin/g++;
+        ln -s /usr/bin/gfortran-5 $HOME/bin/gfortran;
+        ln -s /usr/bin/gcc-5 $HOME/bin/x86_64-linux-gnu-gcc;
+        ln -s /usr/bin/g++-5 $HOME/bin/x86_64-linux-gnu-g++;
         gcc --version;
         BAR="bar -i 30";
-        BUILDOPTS="-j3 VERBOSE=1 FORCE_ASSERTIONS=1 LLVM_ASSERTIONS=1";
+        BUILDOPTS="-j5 VERBOSE=1 FORCE_ASSERTIONS=1 LLVM_ASSERTIONS=1";
         echo "override ARCH=$ARCH" >> Make.user;
+        sudo sh -c "echo 0 > /proc/sys/net/ipv6/conf/lo/disable_ipv6";
+        export JULIA_CPU_CORES=4;
+        export JULIA_TEST_MAXRSS_MB=1200;
         TESTSTORUN="all";
       elif [ `uname` = "Darwin" ]; then
         brew update;
@@ -81,7 +98,10 @@ before_install:
         export JULIA_MACOS_SPAWN="DYLD_FALLBACK_LIBRARY_PATH=\"$DYLD_FALLBACK_LIBRARY_PATH\" \$1";
         export BUILDOPTS="$BUILDOPTS spawn=\$(JULIA_MACOS_SPAWN)";
         make $BUILDOPTS -C contrib -f repackage_system_suitesparse4.make;
+        export JULIA_CPU_CORES=2;
+        export JULIA_TEST_MAXRSS_MB=600;
         TESTSTORUN="all --skip linalg/triangular subarray"; fi # TODO: re enable these if possible without timing out
+    - echo "override JULIA_CPU_TARGET=generic;native" >> Make.user
     - git clone -q git://git.kitenet.net/moreutils
 script:
     - echo BUILDOPTS=$BUILDOPTS
@@ -115,13 +135,12 @@ script:
       fi
     - cd .. && mv julia julia2
     # run tests
-    - /tmp/julia/bin/julia --precompiled=no -e 'true' &&
-        /tmp/julia/bin/julia-debug --precompiled=no -e 'true'
+    - /tmp/julia/bin/julia --sysimage-native-code=no -e 'true' &&
+        /tmp/julia/bin/julia-debug --sysimage-native-code=no -e 'true'
     - /tmp/julia/bin/julia -e 'versioninfo()'
     - pushd /tmp/julia/share/julia/test
-    - export JULIA_CPU_CORES=2 && export JULIA_TEST_MAXRSS_MB=600 &&
-        /tmp/julia/bin/julia --check-bounds=yes runtests.jl $TESTSTORUN &&
-        /tmp/julia/bin/julia --check-bounds=yes runtests.jl libgit2-online download pkg
+    - /tmp/julia/bin/julia --check-bounds=yes runtests.jl $TESTSTORUN &&
+      /tmp/julia/bin/julia --check-bounds=yes runtests.jl libgit2-online download pkg
     - popd
     # test that the embedding code works on our installation
     - mkdir /tmp/embedding-test &&

CONTRIBUTING.md

@@ -141,10 +141,6 @@ All docstrings are written inline above the methods or types they are associated
 4. check the output in `doc/_build/html/` to make sure the changes are correct;
 5. commit your changes and open a pull request.
 
-> **Note**
->
-> Currently there are a large number of docstrings found in `base/docs/helpdb/Base.jl`. When any of these docstrings are modified please move them out of this file and place them above the most appropriate definition in one of the `base/` source files.
-
 #### Adding a new docstring to `base/`
 
 The steps required to add a new docstring are listed below:
@@ -229,10 +225,9 @@ your changes.
 Here is the standard procedure:
 
 1. If you are planning changes to any types or macros, make those
-   changes, commit them, and build julia using `make`. (This is
+   changes and build julia using `make`. (This is
    necessary because `Revise` cannot handle changes to type
-   definitions or macros.) By making a git commit, you "shield" these
-   changes from the `git stash` procedure described below. Unless it's
+   definitions or macros.) Unless it's
    required to get Julia to build, you do not have to add any
    functionality based on the new types, just the type definitions
    themselves.
@@ -245,27 +240,12 @@ Revise.track(Base)
 ```
 
 3. Edit files in `base/`, save your edits, and test the
-   functionality. Once you are satisfied that things work as desired,
-   make another commit and rebuild julia.
-
-Should you for some reason need to quit and restart your REPL session
-before finishing your changes, the procedure above will fail because
-`Revise.track`
-[cannot detect changes in source files that occurred after Julia was built](https://github.com/JuliaLang/julia/issues/23448)---it
-will only detect changes to source files that occur after tracking is
-initiated.  Consequently, any changes made prior to
-`Revise.track(Base)` will not be incorporated into your new REPL
-session. You can work around this by temporarily reverting all source
-files to their original state. From somewhere in the `julia`
-directory, start your REPL session and do the following:
+   functionality.
 
-```julia
-shell> git stash  # ensure that the code in `base/` matches its state when you built julia
-
-julia> Revise.track(Base)  # Revise's source code cache is synchronized with what's running
-
-shell> git stash pop  # restore any in-progress changes (will now be tracked)
-```
+If you need to restart your Julia session, just start at step 2 above.
+`Revise.track(Base)` will note any changes from when Julia was last
+built and incorporate them automatically. You only need to rebuild
+Julia if you made code-changes that Revise cannot handle.
 
 ### Code Formatting Guidelines
 

LICENSE.md

@@ -54,8 +54,6 @@ their own licenses:
 - [ARPACK](http://www.caam.rice.edu/software/ARPACK/RiceBSD.txt#LICENSE) [BSD-3]
 - [DSFMT](http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/LICENSE.txt) [BSD-3]
 - [OPENLIBM](https://github.com/JuliaLang/openlibm/blob/master/LICENSE.md) [MIT, BSD-2, ISC]
-- [OPENSPECFUN](https://github.com/JuliaLang/openspecfun) [MIT, public domain]
-- [FADDEEVA](http://ab-initio.mit.edu/Faddeeva) [MIT]
 - [GMP](http://gmplib.org/manual/Copying.html#Copying) [LGPL3+ or GPL2+]
 - [LIBGIT2](https://github.com/libgit2/libgit2/blob/development/COPYING) [GPL2+ with unlimited linking exception]
 - [CURL](https://curl.haxx.se/docs/copyright.html) [MIT/X derivative]

Make.inc

@@ -31,7 +31,6 @@ USE_SYSTEM_PCRE:=0
 USE_SYSTEM_LIBM:=0
 USE_SYSTEM_OPENLIBM:=0
 UNTRUSTED_SYSTEM_LIBM:=0
-USE_SYSTEM_OPENSPECFUN:=0
 USE_SYSTEM_DSFMT:=0
 USE_SYSTEM_BLAS:=0
 USE_SYSTEM_LAPACK:=0
@@ -82,11 +81,6 @@ HAVE_SSP := 0
 WITH_GC_VERIFY := 0
 WITH_GC_DEBUG_ENV := 0
 
-# When set, give julia binaries CPUID specific names. This is useful in cluster environments
-# with heterogeneous architectures. N.B.: will not be automatically rebuilt for all
-# architectures if julia is updated.
-CPUID_SPECIFIC_BINARIES ?= 0
-
 # Prevent picking up $ARCH from the environment variables
 ARCH:=
 
@@ -693,6 +687,32 @@ ifneq (,$(filter $(ARCH), powerpc64 ppc64))
 $(error Big-endian PPC64 is not supported, to ignore this error, set ARCH=ppc64le)
 endif
 
+# File name of make binary-dist result
+ifeq ($(JULIA_BINARYDIST_FILENAME),)
+DIST_OS:=$(shell echo $(OS) | tr '[:upper:]' '[:lower:]')
+ifeq (WINNT,$(OS))
+DIST_OS:=win
+endif
+ifeq (Linux,$(OS))
+DIST_OS:=linux
+endif
+ifeq (Darwin,$(OS))
+DIST_OS:=mac
+endif
+DIST_ARCH:=$(ARCH)
+ifneq (,$(filter $(ARCH), powerpc64le ppc64le))
+DIST_ARCH:=ppc64le
+endif
+ifeq (1,$(ISX86))
+DIST_ARCH:=$(BINARY)
+endif
+ifneq (,$(findstring arm,$(ARCH)))
+DIST_ARCH:=arm
+endif
+
+JULIA_BINARYDIST_FILENAME := julia-$(JULIA_COMMIT)-$(DIST_OS)$(DIST_ARCH)
+endif
+
 # If we are running on ARM, set certain options automatically
 ifneq (,$(findstring arm,$(ARCH)))
 JCFLAGS += -fsigned-char
@@ -732,6 +752,13 @@ endif
 
 JULIA_CPU_TARGET ?= native
 
+ifneq ($(OS),WINNT)
+# Windows headers with this configuration conflicts with LLVM
+# (Symbol renames are done with macros)
+# We mainly need this on linux for cgmemmgr so don't worry about windows for now...
+JCXXFLAGS += -D_FILE_OFFSET_BITS=64
+endif
+
 # Set some ARCH-specific flags
 ifneq ($(USEICC),1)
 ifeq ($(ISX86),1)
@@ -1124,19 +1151,19 @@ endef
 endif
 
 define symlink_target
-CLEAN_TARGETS += clean-$(2)/$(1)
-clean-$$(abspath $(2)/$(1)):
+CLEAN_TARGETS += clean-$(2)/$(3)
+clean-$$(abspath $(2)/$(3)):
 ifeq ($(BUILD_OS), WINNT)
-	@-cmd //C rmdir $$(call mingw_to_dos,$(2)/$(1),cd $(2) &&)
+	@-cmd //C rmdir $$(call mingw_to_dos,$(2)/$(3),cd $(2) &&)
 else
-	@-rm $$(abspath $(2)/$(1))
+	@-rm $$(abspath $(2)/$(3))
 endif
-$$(subst $$(abspath $(JULIAHOME))/,,$$(abspath $(2)/$(1))): $$(abspath $(2)/$(1))
-$$(abspath $(2)/$(1)): | $$(abspath $(2))
+$$(subst $$(abspath $(JULIAHOME))/,,$$(abspath $(2)/$(3))): $$(abspath $(2)/$(3))
+$$(abspath $(2)/$(3)): | $$(abspath $(2))
 ifeq ($(BUILD_OS), WINNT)
-	@cmd //C mklink //J $$(call mingw_to_dos,$(2)/$(1),cd $(2) &&) $$(call mingw_to_dos,$(1),)
+	@cmd //C mklink //J $$(call mingw_to_dos,$(2)/$(3),cd $(2) &&) $$(call mingw_to_dos,$(1),)
 else ifneq (,$(findstring CYGWIN,$(BUILD_OS)))
-	@cmd /C mklink /J $$(call cygpath_w,$(2)/$(1)) $$(call cygpath_w,$(1))
+	@cmd /C mklink /J $$(call cygpath_w,$(2)/$(3)) $$(call cygpath_w,$(1))
 else ifdef JULIA_VAGRANT_BUILD
 	@cp -R $$(abspath $(1)) $$@
 else