Use CMAKE_POSITION_INDEPENDENT_CODE=ON instead of -fPIE or -pie (#2125)

Author: eramongodb

.evergreen/generated_configs/legacy-config.yml

@@ -246,7 +246,7 @@ tasks:
       shell: bash
       script: |-
         set -o errexit
-        env CFLAGS="-fno-strict-overflow -D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIE -O" LDFLAGS="-pie -Wl,-z,relro -Wl,-z,now" SNAPPY="OFF" ZLIB="OFF" ZSTD="OFF" .evergreen/scripts/compile.sh
+        env CFLAGS="-fno-strict-overflow -D_FORTIFY_SOURCE=2 -fstack-protector-all -O" EXTRA_CONFIGURE_FLAGS="CMAKE_POSITION_INDEPENDENT_CODE=ON" LDFLAGS="-Wl,-z,relro -Wl,-z,now" SNAPPY="OFF" ZLIB="OFF" ZSTD="OFF" .evergreen/scripts/compile.sh
   - func: upload-build
 - name: debug-compile-compression-zlib
   tags:

.evergreen/legacy_config_generator/evergreen_config_lib/tasks.py

@@ -182,8 +182,9 @@ def __init__(
         'hardened-compile',
         tags=['hardened'],
         compression=None,
-        CFLAGS='-fno-strict-overflow -D_FORTIFY_SOURCE=2 -fstack-protector-all -fPIE -O',
-        LDFLAGS='-pie -Wl,-z,relro -Wl,-z,now',
+        CFLAGS='-fno-strict-overflow -D_FORTIFY_SOURCE=2 -fstack-protector-all -O',
+        LDFLAGS='-Wl,-z,relro -Wl,-z,now',
+        EXTRA_CONFIGURE_FLAGS='CMAKE_POSITION_INDEPENDENT_CODE=ON',
     ),
     CompileTask('debug-compile-compression-zlib', tags=['zlib', 'compression'], compression='zlib'),
     CompileTask('debug-compile-compression-snappy', tags=['snappy', 'compression'], compression='snappy'),