Remove PRE_COMMAND scaffolding

Author: reuk

.travis.yml

@@ -142,22 +142,16 @@ jobs:
 
 install:
   - ccache --max-size=1G
-  - COMMAND="make -C src minisat2-download" &&
-    eval ${PRE_COMMAND} ${COMMAND}
-  - COMMAND="make -C src/ansi-c library_check" &&
-    eval ${PRE_COMMAND} ${COMMAND}
-  - COMMAND="make -C src CXX=\"$COMPILER\" CXXFLAGS=\"-Wall -Werror -pedantic -O2 -g $EXTRA_CXXFLAGS\" -j2" &&
-    eval ${PRE_COMMAND} ${COMMAND}
-  - COMMAND="make -C src CXX=\"$COMPILER\" CXXFLAGS=\"$FLAGS $EXTRA_CXXFLAGS\" -j2 clobber.dir memory-models.dir musketeer.dir" &&
-    eval ${PRE_COMMAND} ${COMMAND}
+  - make -C src minisat2-download
+  - make -C src/ansi-c library_check
+  - make -C src "CXX=${COMPILER}" "CXXFLAGS=-Wall -Werror -pedantic -O2 -g ${EXTRA_CXXFLAGS}" -j2
+  - make -C src "CXX=${COMPILER}" "CXXFLAGS=-Wall -Werror -pedantic -O2 -g ${EXTRA_CXXFLAGS}" -j2 clobber.dir memory-models.dir musketeer.dir
 
 script:
   - if [ -e bin/gcc ] ; then export PATH=$PWD/bin:$PATH ; fi ;
-    COMMAND="env UBSAN_OPTIONS=print_stacktrace=1 make -C regression test CXX=\"$COMPILER\" CXXFLAGS=\"-Wall -Werror -pedantic -O2 -g $EXTRA_CXXFLAGS\"" &&
-    eval ${PRE_COMMAND} ${COMMAND}
-  - COMMAND="make -C unit CXX=\"$COMPILER\" CXXFLAGS=\"-Wall -Werror -pedantic -O2 -g $EXTRA_CXXFLAGS\" -j2" &&
-    eval ${PRE_COMMAND} ${COMMAND}
-  - COMMAND="make -C unit test" && eval ${PRE_COMMAND} ${COMMAND}
+  - env UBSAN_OPTIONS=print_stacktrace=1 make -C regression test "CXX=${COMPILER}" "CXXFLAGS=-Wall -Werror -pedantic -O2 -g ${EXTRA_CXXFLAGS}"
+  - make -C unit "CXX=${COMPILER}" "CXXFLAGS=-Wall -Werror -pedantic -O2 -g ${EXTRA_CXXFLAGS}" -j2
+  - make -C unit test
 
 before_cache:
   - ccache -s