ffi 1.15.2 does not build on Ruby 2.7.3

[Signum]

I cannot build 1.15.2 on Ruby 2.7.3. However 1.15.1 worked. Am I doing anything wrong?

This is my build output:

LANG=C gem install ffi -v 1.15.2
Building native extensions. This could take a while...
ERROR:  Error installing ffi:
	ERROR: Failed to build gem native extension.

    current directory: /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c
/home/chaas/.rbenv/versions/2.7.3/bin/ruby -I /home/chaas/.rbenv/versions/2.7.3/lib/ruby/2.7.0 -r ./siteconf20210616-505072-qt9gth.rb extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi,/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/ffi,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/ffi... no
checking for whether -Wl,--exclude-libs,ALL is accepted as LDFLAGS... yes
checking for whether -pthread is accepted as LDFLAGS... yes
creating extconf.h
creating Makefile

current directory: /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c
make "DESTDIR=" clean

current directory: /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c
make "DESTDIR="
Configuring libffi
make -C "/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux"
make[1]: Entering directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux'
make 'AR_FLAGS=' 'CC_FOR_BUILD=' 'CFLAGS=-Wall -fexceptions' 'CXXFLAGS=-g -O2' 'CFLAGS_FOR_BUILD=' 'CFLAGS_FOR_TARGET=' 'INSTALL=/usr/bin/install -c' 'INSTALL_DATA=/usr/bin/install -c -m 644' 'INSTALL_PROGRAM=/usr/bin/install -c' 'INSTALL_SCRIPT=/usr/bin/install -c' 'JC1FLAGS=' 'LDFLAGS=' 'LIBCFLAGS=' 'LIBCFLAGS_FOR_TARGET=' 'MAKE=make' 'MAKEINFO=/bin/bash /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/missing makeinfo ' 'PICFLAG=' 'PICFLAG_FOR_TARGET=' 'RUNTESTFLAGS=' 'SHELL=/bin/bash' 'exec_prefix=/usr/local' 'infodir=/usr/local/share/info' 'libdir=/usr/local/lib' 'mandir=/usr/local/share/man' 'prefix=/usr/local' 'AR=ar' 'AS=as' 'CC=gcc' 'CXX=g++' 'LD=/usr/bin/ld' 'NM=/usr/bin/nm -B' 'RANLIB=ranlib' 'DESTDIR=' all-recursive
make[2]: Entering directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux'
Making all in include
make[3]: Entering directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux/include'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux/include'
Making all in testsuite
make[3]: Entering directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux/testsuite'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux/testsuite'
Making all in man
make[3]: Entering directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux/man'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux/man'
make[3]: Entering directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux'
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/prep_cif.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/prep_cif.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/prep_cif.c  -fPIC -DPIC -o src/.libs/prep_cif.o
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/types.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/types.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/types.c  -fPIC -DPIC -o src/.libs/types.o
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/raw_api.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/raw_api.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/raw_api.c  -fPIC -DPIC -o src/.libs/raw_api.o
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/java_raw_api.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c  -fPIC -DPIC -o src/.libs/java_raw_api.o
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c: In function 'ffi_java_raw_call':
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:317:3: warning: 'ffi_java_raw_to_ptrarray' is deprecated [-Wdeprecated-declarations]
  317 |   ffi_java_raw_to_ptrarray (cif, raw, avalue);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:76:1: note: declared here
   76 | ffi_java_raw_to_ptrarray (ffi_cif *cif, ffi_java_raw *raw, void **args)
      | ^~~~~~~~~~~~~~~~~~~~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c: In function 'ffi_java_translate_args':
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:328:3: warning: 'ffi_java_raw_size' is deprecated [-Wdeprecated-declarations]
  328 |   ffi_java_raw *raw = (ffi_java_raw*)alloca (ffi_java_raw_size (cif));
      |   ^~~~~~~~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:45:1: note: declared here
   45 | ffi_java_raw_size (ffi_cif *cif)
      | ^~~~~~~~~~~~~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:331:3: warning: 'ffi_java_ptrarray_to_raw' is deprecated [-Wdeprecated-declarations]
  331 |   ffi_java_ptrarray_to_raw (cif, avalue, raw);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:157:1: note: declared here
  157 | ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw)
      | ^~~~~~~~~~~~~~~~~~~~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c: In function 'ffi_prep_java_raw_closure':
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:369:3: warning: 'ffi_prep_java_raw_closure_loc' is deprecated [-Wdeprecated-declarations]
  369 |   return ffi_prep_java_raw_closure_loc (cl, cif, fun, user_data, cl);
      |   ^~~~~~
/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/java_raw_api.c:337:1: note: declared here
  337 | ffi_prep_java_raw_closure_loc (ffi_java_raw_closure* cl,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/closures.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/closures.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/closures.c  -fPIC -DPIC -o src/.libs/closures.o
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/x86/ffi64.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/ffi64.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/ffi64.c  -fPIC -DPIC -o src/x86/.libs/ffi64.o
/bin/bash ./libtool    --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src  -c -o src/x86/unix64.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/unix64.S
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/unix64.S  -fPIC -DPIC -o src/x86/.libs/unix64.o
/bin/bash ./libtool  --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -c -o src/x86/ffiw64.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/ffiw64.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -Wall -fexceptions -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/ffiw64.c  -fPIC -DPIC -o src/x86/.libs/ffiw64.o
/bin/bash ./libtool    --mode=compile gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src  -c -o src/x86/win64.lo /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/win64.S
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src -c /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src/x86/win64.S  -fPIC -DPIC -o src/x86/.libs/win64.o
gcc -DHAVE_CONFIG_H -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi  -I. -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/include -Iinclude -I/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/src   -Wall -fexceptions -DX86_64 -E -x assembler-with-cpp -o libffi.map /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/libffi.map.in
/bin/bash ./libtool  --tag=CC   --mode=link gcc  -Wall -fexceptions   -o libffi_convenience.la  src/prep_cif.lo src/types.lo src/raw_api.lo src/java_raw_api.lo src/closures.lo   src/x86/ffi64.lo src/x86/unix64.lo src/x86/ffiw64.lo src/x86/win64.lo 
libtool: link: rm -fr  .libs/libffi_convenience.a(D)
libtool: link: ar cru .libs/libffi_convenience.a src/.libs/prep_cif.o src/.libs/types.o src/.libs/raw_api.o src/.libs/java_raw_api.o src/.libs/closures.o src/x86/.libs/ffi64.o src/x86/.libs/unix64.o src/x86/.libs/ffiw64.o src/x86/.libs/win64.o 
ar: `u' modifier ignored since `D' is the default (see `U')
libtool: link: ranlib .libs/libffi_convenience.a
libtool: link: ( cd ".libs" && rm -f "libffi_convenience.la" && ln -s "../libffi_convenience.la" "libffi_convenience.la" )
/bin/bash ./libtool  --tag=CC   --mode=link gcc  -Wall -fexceptions -no-undefined -version-info `grep -v '^#' /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi/libtool-version` -Wl,--version-script,libffi.map    -o libffi.la -rpath /usr/local/lib/../lib src/prep_cif.lo src/types.lo src/raw_api.lo src/java_raw_api.lo src/closures.lo  src/x86/ffi64.lo src/x86/unix64.lo src/x86/ffiw64.lo src/x86/win64.lo 
libtool: link: gcc -shared  -fPIC -DPIC  src/.libs/prep_cif.o src/.libs/types.o src/.libs/raw_api.o src/.libs/java_raw_api.o src/.libs/closures.o src/x86/.libs/ffi64.o src/x86/.libs/unix64.o src/x86/.libs/ffiw64.o src/x86/.libs/win64.o    -Wl,--version-script -Wl,libffi.map   -Wl,-soname -Wl,libffi.so.8 -o .libs/libffi.so.8.1.0
/usr/bin/ld:libffi.map:15: ignoring invalid character `"' in script
/usr/bin/ld:libffi.map:15: syntax error in VERSION script
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:1045: libffi.la] Error 1
make[3]: Leaving directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux'
make[2]: *** [Makefile:1309: all-recursive] Error 1
make[2]: Leaving directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux'
make[1]: *** [Makefile:617: all] Error 2
make[1]: Leaving directory '/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux'
make: *** [libffi.mk:9: "/home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2/ext/ffi_c/libffi-x86_64-linux"/.libs/libffi_convenience.a] Error 2

make failed, exit code 2

Gem files will remain installed in /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/gems/ffi-1.15.2 for inspection.
Results logged to /home/chaas/.rbenv/versions/2.7.3/lib/ruby/gems/2.7.0/extensions/x86_64-linux/2.7.0/ffi-1.15.2/gem_make.out

[larskanis]

Damn, we had the same in #863 already! ffi-1.15.3 is pushed - fixing that packaging issue.

[Signum]

Confirmed. The issue is resolved.

LANG=C gem install ffi -v 1.15.3
Fetching ffi-1.15.3.gem
Building native extensions. This could take a while...
Successfully installed ffi-1.15.3
Parsing documentation for ffi-1.15.3
Installing ri documentation for ffi-1.15.3
Done installing documentation for ffi after 3 seconds
1 gem installed