cURL Asan testing and LIB ordering

Hi Everyone,

I'm performing a quick Asan audit on cURL 7.64.1. CFLAGS, CXXFLAGS
include -fsanitize=address -fno-omit-frame-pointer; and LDFLAGS
includes -fsanitize=address.

cURL is failing to configure with the error below.

How can I patch cURL so that it orders libraries properly during
configure tests? I think I only need cURL to place $(LIBS) at the head
of the list.

Thanks in advance.

============================================

checking for sys/socket.h... (cached) yes
checking for struct timeval... yes
checking run-time libs availability... ==9979==ASan runtime does not
come first in initial library list; you should either link runtime to
your application or manually preload it with LD_PRELOAD.
failed
configure: error: one or more libs available at link-time are not
available run-time. Libs used at link-time: -lidn2 -lssl -lcrypto
-lldap -llber -lz -lidn2 -lssl -lcrypto -lz -lasan -ldl -lpthread
==9984==ASan runtime does not come first in initial library list; you
should either link runtime to your application or manually preload it
with LD_PRELOAD.
==9987==ASan runtime does not come first in initial library list; you
should either link runtime to your application or manually preload it
with LD_PRELOAD.
==9990==ASan runtime does not come first in initial library list; you
should either link runtime to your application or manually preload it
with LD_PRELOAD.
==9992==ASan runtime does not come first in initial library list; you
should either link runtime to your application or manually preload it
with LD_PRELOAD.
Failed to configure cURL

============================================

PKG_CONFIG_PATH: /var/sanitize/lib64/pkgconfig
       CPPFLAGS: -I/var/sanitize/include -DNDEBUG
         CFLAGS: -g2 -O2 -fsanitize=address -fno-omit-frame-pointer
-march=native -fPIC -pthread
       CXXFLAGS: -g2 -O2 -fsanitize=address -fno-omit-frame-pointer
-march=native -fPIC -pthread
        LDFLAGS: -L/var/sanitize/lib64 -fsanitize=address
-Wl,-R,/var/sanitize/lib64 -Wl,--enable-new-dtags
           LIBS: -lasan -ldl -lpthread
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Received on 2019-05-13