(JIGA_LIB) target (CC) call now uses $(CFLAGS)

[judovana]

Eg --sysroot is usually transfered via them

[judovana]

Current autotools is unable of crosscompilation. This is first step to allow that (may be wrong). I have no idea what else is missing - the crosscompilation fails "cannot locate -lcriu". The direct compilation with gcc works (see #27) . So I really suspect something missing in current configure. @gnu-andrew can you help please?

[judovana]

It is fixing:

jvanek  jvanek  15:37:00  ~  git  jigawatts-ja  master  ❓  $   ./configure --build x86_64-pc-linux-gnu --host aarch64-linux-gnu  CC=aarch64-linux-gnu-gcc LDFLAGS="-static" CFLAGS="--sysroot=/var/lib/mock/fedora-35-aarch64/root/"
checking build system type... x86_64-pc-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking target system type... aarch64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for aarch64-linux-gnu-strip... aarch64-linux-gnu-strip
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking how to create a pax tar archive... gnutar
checking whether to enable maintainer-specific portions of Makefiles... yes
checking for aarch64-linux-gnu-gcc... aarch64-linux-gnu-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether aarch64-linux-gnu-gcc accepts -g... yes
checking for aarch64-linux-gnu-gcc option to accept ISO C89... none needed
checking whether aarch64-linux-gnu-gcc understands -c and -o together... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of aarch64-linux-gnu-gcc... none
checking for a JDK home directory... not specified
checking for /usr/lib/jvm/java-openjdk... found
checking for the JDK version... 11
checking for aarch64-linux-gnu-rmdir... no
checking for rmdir... /usr/bin/rmdir
configure: WARNING: using cross tools not prefixed with host triplet
checking if /usr/bin/rmdir supports --ignore-fail-on-non-empty... yes
checking for aarch64-linux-gnu-pkg-config... no
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for CRIU... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating autotools.pom.properties
config.status: creating MANIFEST.MF
config.status: executing depfiles commands
 jvanek  jvanek  15:37:04  ~  git  jigawatts-ja  master  ❓  $  make
mkdir -p /home/jvanek/git/jigawatts-ja/build
find /home/jvanek/git/jigawatts-ja/src/main/java -name '*.java' | sort > /home/jvanek/git/jigawatts-ja/build/source-files.txt ;
touch /home/jvanek/git/jigawatts-ja/build/source-files.txt
/usr/lib/jvm/java-openjdk/bin/javac -g  \
      -d /home/jvanek/git/jigawatts-ja/build -h /home/jvanek/git/jigawatts-ja/build/include \
      -sourcepath /home/jvanek/git/jigawatts-ja/src/main/java \
      @/home/jvanek/git/jigawatts-ja/build/source-files.txt ;
mkdir -p /home/jvanek/git/jigawatts-ja/stamps
touch /home/jvanek/git/jigawatts-ja/stamps/classes.stamp
cd /home/jvanek/git/jigawatts-ja/build && \
  /usr/bin/mkdir -p META-INF/maven/com.redhat/jigawatts && \
  cp /home/jvanek/git/jigawatts-ja/pom.xml META-INF/maven/com.redhat/jigawatts && \
  cp /home/jvanek/git/jigawatts-ja/autotools.pom.properties META-INF/maven/com.redhat/jigawatts/pom.properties && \
  /usr/lib/jvm/java-openjdk/bin/jar -cvfm jigawatts.jar /home/jvanek/git/jigawatts-ja/MANIFEST.MF ./com META-INF
added manifest
adding: com/(in = 0) (out= 0)(stored 0%)
adding: com/redhat/(in = 0) (out= 0)(stored 0%)
adding: com/redhat/jigawatts/(in = 0) (out= 0)(stored 0%)
adding: com/redhat/jigawatts/Jigawatts.class(in = 5250) (out= 2452)(deflated 53%)
adding: com/redhat/jigawatts/Hook.class(in = 370) (out= 249)(deflated 32%)
adding: com/redhat/jigawatts/LibraryLoader.class(in = 8169) (out= 4031)(deflated 50%)
ignoring entry META-INF/
adding: META-INF/maven/(in = 0) (out= 0)(stored 0%)
adding: META-INF/maven/com.redhat/(in = 0) (out= 0)(stored 0%)
adding: META-INF/maven/com.redhat/jigawatts/(in = 0) (out= 0)(stored 0%)
adding: META-INF/maven/com.redhat/jigawatts/pom.properties(in = 61) (out= 62)(deflated -1%)
adding: META-INF/maven/com.redhat/jigawatts/pom.xml(in = 7231) (out= 1987)(deflated 72%)
aarch64-linux-gnu-gcc --sysroot=/var/lib/mock/fedora-35-aarch64/root/ -I/usr/lib/jvm/java-openjdk/include \
  -I/usr/lib/jvm/java-openjdk/include/linux -I/home/jvanek/git/jigawatts-ja/build/include -I/usr/include/criu/  \
  -fPIC -o /home/jvanek/git/jigawatts-ja/build/com_redhat_jigawatts_Jigawatts.o -c /home/jvanek/git/jigawatts-ja/src/main/cpp/com_redhat_jigawatts_Jigawatts.cpp
aarch64-linux-gnu-gcc -static /home/jvanek/git/jigawatts-ja/build/com_redhat_jigawatts_Jigawatts.o -shared -o /home/jvanek/git/jigawatts-ja/build/libJigawatts.so -lcriu 
/usr/bin/aarch64-linux-gnu-ld: cannot find crti.o: No such file or directory
/usr/bin/aarch64-linux-gnu-ld: cannot find -lcriu
/usr/bin/aarch64-linux-gnu-ld: cannot find -lc
collect2: error: ld returned 1 exit status
make: *** [Makefile:689: /home/jvanek/git/jigawatts-ja/build/libJigawatts.so] Error 1
 jvanek  jvanek  15:37:09  ~  git  jigawatts-ja  master  2❓  $  

[judovana]

(compare with #28)