Bug #16015
Updated by jiehe (jie he) almost 5 years ago
reproduction steps :
building ruby on Intel i7,
./configure --build=x86_64-generic-linux-gnu --host=x86_64-generic-linux-gnu --target=x86_64-clr-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/bin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --disable-static --prefix=/usr --enable-shared --disable-rpath --with-dbm-type=gdbm_compat --with-out-ext=tcl --with-out-ext=tk
expected result:
configure output should include "checking native coroutine implementation for x86_64-linux-gnu... amd64"
actual result :
checking native coroutine implementation for x86_64-linux-gnu... no
I am trying to build ruby 2.6.3 downloaded from github.
Once I executed “configure --target x86_64-clr-linux-gnu”, configure couldn’t enable the native coroutine for amd64, because the target_os is recognized as “linux-gnu”, not “linux”.
In configure.ac, for enable native coroutine for amd64, target_os have to be “linux”,
AS_CASE(["$target_cpu-$target_os"],
[x*64-darwin*], [
rb_cv_coroutine=amd64
],
[x*64-linux], [
AS_CASE(["$ac_cv_sizeof_voidp"],
[8], [ rb_cv_coroutine=amd64 ],
[4], [ rb_cv_coroutine=x86 ],
[*], [ rb_cv_coroutine= ]
)
],
but if with --target xxxx, the sed command in the following section (from configure source code) shouldn't work.
the sed command should replace linux-gnu to linux.
# The aliases save the names the user supplied, while $host etc.
# will get canonicalized.
test -n "$target_alias" &&
test "$program_prefix$program_suffix$program_transform_name" = \
NONENONEs,x,x, &&
program_prefix=${target_alias}-
test x"$target_alias" = x &&
target_os=`echo $target_os | sed 's/linux-gnu$/linux/;s/linux-gnu/linux-/'`
so the question is if the match patten code in configure.ac is not enough for matching all linux OS alias?