From a53c5d462145b3d9becb871b893ac65a6b0bcf79 Mon Sep 17 00:00:00 2001
From: Silvan Calarco <silvan.calarco@mambasoft.it>
Date: Fri, 5 Jan 2024 23:18:57 +0100
Subject: [PATCH] install alternatives for go and gofmt binaries [release
 1.14.7-2mamba;Sun Aug 16 2020]

---
 README.md |  1 -
 go.spec   | 79 +++++++++++++++++++++++++++++++------------------------
 2 files changed, 45 insertions(+), 35 deletions(-)

diff --git a/README.md b/README.md
index b0c7cab..e3ad339 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,3 @@
 # go
 
 The Go programming language.
-
diff --git a/go.spec b/go.spec
index cff25b2..75c4371 100644
--- a/go.spec
+++ b/go.spec
@@ -1,14 +1,12 @@
-%define with_pie 1
 Name:          go
 Version:       1.14.7
-Release:       1mamba
+Release:       2mamba
 Summary:       The Go programming language
 Group:         Applications/Development
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://golang.org
-## GITSOURCE https://github.com/golang/go.git go1.10.1
 Source:        https://github.com/golang/go.git/go%{version}/go-%{version}.tar.bz2
 Patch0:        go-1.10.1-default-buildmode-pie.patch
 License:       BSD
@@ -16,32 +14,23 @@ License:       BSD
 BuildRequires: glibc-devel
 ## AUTOBUILDREQ-END
 BuildRequires: gcc-go >= 8.1.0
-Provides:      go
 Provides:      go-pie
-#%if "%{with_pie}" == "1"
-#Conflicts:     go
-#%else
-#Conflicts:     go-pie
-#%endif
+Obsoletes:     go-pie
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 The Go programming language.
 
-%package pie
-Group:         Applications/Development
-Summary:       The Go programming language (with PIE enabled by default)
-
-%description pie
-The Go programming language (with PIE enabled by default).
-
-%debug_package
+# Fedora: 
+# Don't alter timestamps of especially the .a files (or else go will rebuild later)
+# Actually, don't strip at all since we are not even building debug packages and this corrupts the dwarf testdata
+#% debug_package
+%global __strip /bin/true
 
 %prep
 %setup -q
-#%if "%{with_pie}" == "1"
-#%patch0 -p1
-#%endif
+#-D -T
+#:<< _EOF
 
 %define _use_internal_dependency_generator 0
 
@@ -61,17 +50,29 @@ _EOF
 chmod +x %{_builddir}/go-%{version}/find_requires.sh
 
 %build
-export GOPATH="`pwd`/"
+#:<< _EOF
+export GOPATH="%{_builddir}/"
+export GOROOT="$PWD"
+export GOROOT_FINAL=%{_libdir}/go
+export GO_LDFLAGS="-linkmode internal"
+export CGO_ENABLED=1
 
-export GOROOT="$GOPATH"
-export GOBIN="$GOROOT/bin"
+# Use gcc-go as bootstrap compiler
+export GOROOT_BOOTSTRAP=/
+sed -i "s|\$GOROOT_BOOTSTRAP/bin/go|/usr/bin/gcc-go|" src/make.bash src/make.rc
+sed -i "s|/bin/go|/usr/bin/go|" src/cmd/dist/buildtool.go
 
-cd "$GOPATH/src"
+# golang
+#export GOROOT_BOOTSTRAP=%{_libdir}/go
+
+cd src
 ./make.bash --no-clean -v
+cd ..
+
+PATH="$PWD/bin:$PATH" go install -v -buildmode=shared std
 
-PATH="$GOBIN:$PATH" go install -v -buildmode=shared std
 %ifarch x86_64
-PATH="$GOBIN:$PATH" go install -v -race std
+PATH="$PWD/bin:$PATH" go install -v -race std
 %endif
 
 %install
@@ -84,8 +85,6 @@ install -d %{buildroot}{%{_bindir},%{_libdir}/go,%{_docdir}/go}
 cp -a bin pkg src lib misc %{buildroot}%{_libdir}/go
 cp -r doc/* %{buildroot}%{_docdir}/go
 
-ln -sf %{_libdir}/go/bin/go %{buildroot}%{_bindir}/go-pie
-ln -sf %{_libdir}/go/bin/gofmt %{buildroot}%{_bindir}/gofmt-pie
 ln -sf %{_docdir}/go %{buildroot}%{_libdir}/go/doc
 
 install -Dm644 LICENSE %{buildroot}%{_datadir}/licenses/go/LICENSE
@@ -98,14 +97,23 @@ rm -rf %{buildroot}%{_libdir}/go/src/*.rc
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%if "%{with_pie}" == "1"
-%files pie
-%else
+%post
+/usr/sbin/alternatives --install \
+   %{_bindir}/go go %{_libdir}/go/bin/go 50
+/usr/sbin/alternatives --install \
+   %{_bindir}/gofmt gofmt %{_libdir}/go/bin/gofmt 50
+:
+
+%preun
+# erase
+if [ $1 -eq 0 ]; then
+   /usr/sbin/update-alternatives --remove go %{_libdir}/go/bin/go
+   /usr/sbin/update-alternatives --remove gofmt %{_libdir}/go/bin/gofmt
+fi
+:
+
 %files
-%endif
 %defattr(-,root,root)
-%{_bindir}/go-pie
-%{_bindir}/gofmt-pie
 %dir %{_libdir}/go
 %{_libdir}/go/*
 %dir %{_datadir}/doc/go
@@ -114,6 +122,9 @@ rm -rf %{buildroot}%{_libdir}/go/src/*.rc
 #%doc README.md
 
 %changelog
+* Sun Aug 16 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.14.7-2mamba
+- install alternatives for go and gofmt binaries
+
 * Fri Aug 07 2020 Automatic Build System <autodist@mambasoft.it> 1.14.7-1mamba
 - automatic version update by autodist