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mkmf: Add a configure option to set verbose mode (V=1 or 0) in mkmf.rb.

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Note this change is only for `configure.ac`, not for Windows using
`win32/configure.bat`.

```
$ ./configure --help | grep mkmf
  --enable-mkmf-verbose   enable verbose in mkmf
```

Run the following command to enable the mkmf verbose mode.

```
$ ./configure --enable-mkmf-verbose
$ grep MKMF_VERBOSE config.status
S["MKMF_VERBOSE"]="1"
```

In this mkmf verbose mode, when compiling a native extension, the
`rake compile` prints the compiling commands such as
"gcc -I. <...> path/to/file" instead of "compiling path/to/file".

```
$ git clone https://github.com/deivid-rodriguez/byebug.git
$ cd byebug
$ bundle install --standalone
$ bundle exec rake compile
...
gcc -I. <...> path/to/file
...
```
This commit is contained in:
Jun Aruga 2022-04-21 22:59:59 +02:00 committed by Jun Aruga
parent 40ca208a6d
commit 019cbded90
Notes: git 2022-05-12 19:36:35 +09:00 
Merged: https://github.com/ruby/ruby/pull/5879
2 changed files with 9 additions and 1 deletions
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7
configure.ac
View file

@ -4227,6 +4227,13 @@ AS_IF([test -z "$MANTYPE"], [
])
AC_SUBST(MANTYPE)
MKMF_VERBOSE=0
AC_ARG_ENABLE(mkmf-verbose,
AS_HELP_STRING([--enable-mkmf-verbose], [enable verbose in mkmf]),
[MKMF_VERBOSE=1],
[MKMF_VERBOSE=0])
AC_SUBST(MKMF_VERBOSE)
AC_ARG_ENABLE(rubygems,
AS_HELP_STRING([--disable-rubygems], [disable rubygems by default]),
[enable_rubygems="$enableval"], [enable_rubygems=yes])

3
lib/mkmf.rb
View file

@ -1964,13 +1964,14 @@ SRC
def configuration(srcdir)
mk = []
CONFIG['MKMF_VERBOSE'] ||= "0"
vpath = $VPATH.dup
CONFIG["hdrdir"] ||= $hdrdir
mk << %{
SHELL = /bin/sh
# V=0 quiet, V=1 verbose. other values don't work.
V = 0
V = #{CONFIG['MKMF_VERBOSE']}
V0 = $(V:0=)
Q1 = $(V:1=)
Q = $(Q1:0=@)