bump projects with FDP and c++11 to c++17 (#13916)

Addressing projects that have errors like the following:

```sh
Step #23 - "compile-libfuzzer-address-x86_64": �[1m/usr/local/lib/clang/21/include/fuzzer/FuzzedDataProvider.h:206:22: �[0m�[0;1;31merror: �[0m�[1mno template named 'is_integral_v' in namespace 'std'; did you mean 'is_integral'?�[0m
Step #23 - "compile-libfuzzer-address-x86_64":   206 |   �[0;34mstatic_assert�[0m(std::is_integral_v<T>, �[0;32m"An integral type is required."�[0m);�[0m
Step #23 - "compile-libfuzzer-address-x86_64":       | �[0;1;32m                ~~~~~^
Step #23 - "compile-libfuzzer-address-x86_64": �[0m�[1m/usr/local/bin/../include/c++/v1/__type_traits/is_integral.h:25:35: �[0m�[0;1;36mnote: �[0m'is_integral' declared here�[0m
Step #23 - "compile-libfuzzer-address-x86_64":    25 | �[0;34mstruct�[0m _LIBCPP_NO_SPECIALIZATIONS is_integral : _BoolConstant<�[0;34m__is_integral�[0m(_Tp)> {};�[0m
Step #23 - "compile-libfuzzer-address-x86_64":       | �[0;1;32m                                  ^
Step #23 - "compile-libfuzzer-address-x86_64": �[0mIn file included from /src/buffer_fuzzer.cc:19:
Step #23 - "compile-libfuzzer-address-x86_64": �[1m/usr/local/lib/clang/21/include/fuzzer/FuzzedDataProvider.h:206:38: �[0m�[0;1;31merror: �[0m�[1mexpected '(' for function-style cast or type construction�[0m
Step #23 - "compile-libfuzzer-address-x86_64":   206 |   �[0;34mstatic_assert�[0m(std::is_integral_v<T>, �[0;32m"An integral type is required."�[0m);�[0m
Step #23 - "compile-libfuzzer-address-x86_64":       | �[0;1;32m                ~~~~~~~~~~~~~~~~~~~~~^
Step #23 - "compile-libfuzzer-address-x86_64": �[0m�[1m/usr/local/lib/clang/21/include/fuzzer/FuzzedDataProvider.h:274:22: �[0m�[0;1;31merror: �[0m�[1mno template named 'is_floating_point_v' in namespace 'std'; did you mean 'is_floating_point'?�[0m
Step #23 - "compile-libfuzzer-address-x86_64":   274 |   �[0;34mstatic_assert�[0m(std::is_floating_point_v<T>,�[0m
```

From
#13848 (comment)

Ref #13915

---------

Signed-off-by: David Korczynski <[email protected]>

Author: DavidKorczynski

projects/astc-encoder/build.sh

@@ -16,4 +16,5 @@
 ################################################################################
 
 # build project and project-hosted fuzzers
+sed -i 's/c++14/c++17/g' $SRC/astc-encoder/Source/Fuzzers/build.sh
 $SRC/astc-encoder/Source/Fuzzers/build.sh

projects/easywsclient/build.sh

@@ -17,6 +17,6 @@
 
 for f in $(find $SRC -name '*_fuzzer.cpp'); do
     b=$(basename -s .cpp $f)
-    $CXX $CXXFLAGS -std=c++11 -g easywsclient.cpp -I. \
+    $CXX $CXXFLAGS -std=c++17 -g easywsclient.cpp -I. \
         $f -o $OUT/$b $LIB_FUZZING_ENGINE
 done

projects/json-c/build.sh

@@ -24,7 +24,7 @@ cp $SRC/json-c/fuzz/*.dict $OUT/
 
 for f in $SRC/json-c/fuzz/*_fuzzer.cc; do
     fuzzer=$(basename "$f" _fuzzer.cc)
-    $CXX $CXXFLAGS -std=c++11 -I$SRC/json-c -I$SRC/json-c/json-c-build\
+    $CXX $CXXFLAGS -std=c++17 -I$SRC/json-c -I$SRC/json-c/json-c-build\
          $SRC/json-c/fuzz/${fuzzer}_fuzzer.cc -o $OUT/${fuzzer}_fuzzer \
          $LIB_FUZZING_ENGINE $SRC/json-c/json-c-build/libjson-c.a
 done

projects/libevent/build.sh

@@ -30,7 +30,7 @@ make install
 # build fuzzer
 for fuzzers in $(find $SRC -name '*_fuzzer.cc'); do
   fuzz_basename=$(basename -s .cc $fuzzers)
-  $CXX $CXXFLAGS -std=c++11 -I../ -Iinclude \
+  $CXX $CXXFLAGS -std=c++17 -I../ -Iinclude \
       $fuzzers $LIB_FUZZING_ENGINE ./lib/libevent.a ./lib/libevent_core.a  \
       ./lib/libevent_pthreads.a ./lib/libevent_extra.a \
       -o $OUT/$fuzz_basename

projects/libgd/build.sh

@@ -25,17 +25,18 @@ sed -i'' -e 's/INT_MAX/100000/' "$SRC/libgd/src/gd_security.c"
 ./configure --prefix="$WORK" --disable-shared
 make -j$(nproc) install
 
+export CXXFLAGS="${CXXFLAGS} -std=c++17"
 for target in Bmp Gd Gd2 Gif Jpeg Png Tga Tiff WBMP Webp; do
     lowercase=$(echo $target | tr "[:upper:]" "[:lower:]")
-    $CXX $CXXFLAGS -std=c++11 -I"$WORK/include" -L"$WORK/lib" \
+    $CXX $CXXFLAGS -I"$WORK/include" -L"$WORK/lib" \
       -DFUZZ_GD_FORMAT=$target \
       $SRC/parser_target.cc -o $OUT/${lowercase}_target \
       $LIB_FUZZING_ENGINE -lgd -Wl,-Bstatic -lz -Wl,-Bdynamic
 done
 
 for fuzzers in $(find $SRC -name '*_fuzzer.cc'); do
       fuzz_basename=$(basename -s .cc $fuzzers)
-      $CXX $CXXFLAGS -std=c++11 -I"$WORK/include" -L"$WORK/lib" \
+      $CXX $CXXFLAGS -I"$WORK/include" -L"$WORK/lib" \
       $fuzzers -o $OUT/$fuzz_basename \
       $LIB_FUZZING_ENGINE -lgd -Wl,-Bstatic -lz -Wl,-Bdynamic
 done

projects/libraw/build.sh

@@ -27,18 +27,19 @@ autoreconf --install
 make
 
 # build fuzzers
-$CXX $CXXFLAGS -std=c++11 -Ilibraw \
+export CXXFLAGS="${CXXFLAGS} -std=c++17"
+$CXX $CXXFLAGS -Ilibraw \
     $SRC/libraw_fuzzer.cc -o $OUT/libraw_fuzzer \
     $LIB_FUZZING_ENGINE -lz lib/.libs/libraw.a
 
-$CXX $CXXFLAGS -std=c++11 -Ilibraw \
+$CXX $CXXFLAGS -Ilibraw \
     $SRC/libraw_fuzzer.cc -o $OUT/libraw_cr2_fuzzer \
     $LIB_FUZZING_ENGINE -lz lib/.libs/libraw.a
 
-$CXX $CXXFLAGS -std=c++11 -Ilibraw \
+$CXX $CXXFLAGS -Ilibraw \
     $SRC/libraw_fuzzer.cc -o $OUT/libraw_nef_fuzzer \
     $LIB_FUZZING_ENGINE -lz lib/.libs/libraw.a
 
-$CXX $CXXFLAGS -std=c++11 -Ilibraw \
+$CXX $CXXFLAGS -Ilibraw \
     $SRC/libraw_fuzzer.cc -o $OUT/libraw_raf_fuzzer \
     $LIB_FUZZING_ENGINE -lz lib/.libs/libraw.a

projects/libusb/build.sh

@@ -23,7 +23,7 @@ make -j$(nproc) all
 # build fuzzer
 for fuzzer in $(find $SRC -name '*_fuzzer.cc'); do
     fuzzer_basename=$(basename -s .cc $fuzzer)
-    $CXX $CXXFLAGS -std=c++11 -I. \
+    $CXX $CXXFLAGS -std=c++17 -I. \
     $fuzzer $LIB_FUZZING_ENGINE ./libusb/.libs/libusb-1.0.a \
     -lpthread -ludev \
     -o $OUT/$fuzzer_basename

projects/lzo/build.sh

@@ -26,11 +26,11 @@ for file in $SRC/*.c;
 do
     name=$(basename $file .c)
     $CC $CFLAGS -c -I include -I minilzo -I include/lzo ${file} -o ${name}.o
-    $CXX $CXXFLAGS -std=c++11 -I include -I minilzo -I include/lzo ${name}.o \
+    $CXX $CXXFLAGS -std=c++17 -I include -I minilzo -I include/lzo ${name}.o \
         -o $OUT/${name} $LIB_FUZZING_ENGINE src/.libs/liblzo2.a
 done
 
-$CXX $CXXFLAGS -std=c++11 -I include -I minilzo -I include/lzo \
+$CXX $CXXFLAGS -std=c++17 -I include -I minilzo -I include/lzo \
     $SRC/all_lzo_compress.cc \
     -o $OUT/all_lzo_compress $LIB_FUZZING_ENGINE src/.libs/liblzo2.a
 

projects/nghttp2/build.sh

@@ -21,16 +21,17 @@ cmake -DENABLE_LIB_ONLY=ON -DBUILD_STATIC_LIBS=ON ../
 make
 make check
 
-$CXX $CXXFLAGS -std=c++11 -I../lib/includes -Ilib/includes -I../lib/ -I../tests/ \
+export CXXFLAGS="${CXXFLAGS} -std=c++17"
+$CXX $CXXFLAGS -I../lib/includes -Ilib/includes -I../lib/ -I../tests/ \
     ../fuzz/fuzz_frames.cc -o $OUT/nghttp2_fuzzer_frames \
     tests/CMakeFiles/main.dir/nghttp2_test_helper.c.o \
     $LIB_FUZZING_ENGINE lib/libnghttp2.a
 
-$CXX $CXXFLAGS -std=c++11 -I../lib/includes -Ilib/includes -I../lib/ \
+$CXX $CXXFLAGS -I../lib/includes -Ilib/includes -I../lib/ \
     ../fuzz/fuzz_target.cc -o $OUT/nghttp2_fuzzer \
     $LIB_FUZZING_ENGINE lib/libnghttp2.a
 
-$CXX $CXXFLAGS -std=c++11 -I../lib/includes -Ilib/includes -I../lib/ \
+$CXX $CXXFLAGS -I../lib/includes -Ilib/includes -I../lib/ \
     ../fuzz/fuzz_target_fdp.cc -o $OUT/nghttp2_fuzzer_fdp \
     $LIB_FUZZING_ENGINE lib/libnghttp2.a