diff --git a/configure.ac b/configure.ac
index a7be75c61..2bd8a4970 100644
--- a/configure.ac
+++ b/configure.ac
@@ -716,7 +716,7 @@ if test x$use_pkgconfig = xyes; then
   )
 else
   # BUG: Fix this:
-  echo 'BUG: configure does not yet check for the following dependencies if pkg-config is not on the system: libcrypto++, gmp'
+  echo 'BUG: configure does not yet check for the following dependencies if pkg-config is not on the system: libcrypto++'
 
   AC_CHECK_HEADER([wolfssl/wolfcrypt/sha512.h],,AC_MSG_ERROR(libwolfssl headers missing))
   AC_CHECK_LIB([wolfssl], [wc_InitSha512],CRYPTO_LIBS=-lwolfssl, AC_MSG_ERROR(libwolfssl missing))
@@ -732,33 +732,9 @@ else
     fi
   fi
 
-# These packages don't provide pkgconfig config files across all
-# platforms, so we use older autoconf detection mechanisms:
-if test x$TARGET_OS = xdarwin; then
-AC_CHECK_HEADER([gmp.h],,AC_MSG_ERROR(libgmp headers missing))
-AC_CHECK_LIB([gmp],[[__gmpn_sub_n]],GMP_LIBS=-lgmp, [AC_MSG_ERROR(libgmp missing)])
-
-AC_CHECK_HEADER([gmpxx.h],,AC_MSG_ERROR(libgmpxx headers missing))
-AC_CHECK_LIB([gmpxx],[main],GMPXX_LIBS=-lgmpxx, [AC_MSG_ERROR(libgmpxx missing)])
-fi
-
-#AC_CHECK_HEADER([gmp.h],,AC_MSG_ERROR(libgmp headers missing))
-#AC_CHECK_LIB([gmp],[[__gmpn_sub_n]],GMP_LIBS=-lgmp, [AC_MSG_ERROR(libgmp missing)])
-
-#AC_CHECK_HEADER([gmpxx.h],,AC_MSG_ERROR(libgmpxx headers missing))
-#AC_CHECK_LIB([gmpxx],[main],GMPXX_LIBS=-lgmpxx, [AC_MSG_ERROR(libgmpxx missing)])
-
 
 fi
 
-# These packages don't provide pkgconfig config files across all
-# platforms, so we use older autoconf detection mechanisms:
-AC_CHECK_HEADER([gmp.h],,AC_MSG_ERROR(libgmp headers missing))
-#AC_CHECK_LIB([gmp],[[__gmpn_sub_n]],GMP_LIBS=-lgmp, [AC_MSG_ERROR(libgmp missing)])
-
-AC_CHECK_HEADER([gmpxx.h],,AC_MSG_ERROR(libgmpxx headers missing))
-AC_CHECK_LIB([gmpxx],[main],GMPXX_LIBS=-lgmpxx, [AC_MSG_ERROR(libgmpxx missing)])
-
 RUST_LIBS="-lrustzcash"
 case $host in
   *mingw*)
@@ -768,12 +744,12 @@ case $host in
     ;;
 esac
 
-# Additional Zcash internals flags
+# Additional internals flags
 AX_CHECK_COMPILE_FLAG([-fwrapv],[CXXFLAGS="$CXXFLAGS -fwrapv"])
 AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing],[CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"])
 AX_CHECK_COMPILE_FLAG([-Wno-builtin-declaration-mismatch],[CXXFLAGS="$CXXFLAGS -Wno-builtin-declaration-mismatch"],,[[$CXXFLAG_WERROR]])
 
-LIBZCASH_LIBS="-lgmp -lgmpxx $BOOST_SYSTEM_LIB -lwolfssl -lsodium $RUST_LIBS"
+LIBZCASH_LIBS="$BOOST_SYSTEM_LIB -lwolfssl -lsodium $RUST_LIBS"
 
 AC_MSG_CHECKING([whether to build hushd])
 AM_CONDITIONAL([BUILD_BITCOIND], [test x$build_bitcoind = xyes])
@@ -902,8 +878,6 @@ AC_SUBST(CRYPTO_LIBS)
 AC_SUBST(SSL_LIBS)
 AC_SUBST(EVENT_LIBS)
 AC_SUBST(EVENT_PTHREADS_LIBS)
-AC_SUBST(GMP_LIBS)
-AC_SUBST(GMPXX_LIBS)
 AC_SUBST(LIBZCASH_LIBS)
 AC_CONFIG_FILES([Makefile src/Makefile doc/man/Makefile src/test/buildenv.py])
 AC_CONFIG_FILES([qa/pull-tester/run-bitcoind-for-test.sh],[chmod +x qa/pull-tester/run-bitcoind-for-test.sh])
diff --git a/depends/packages/libgmp.mk b/depends/packages/libgmp.mk
deleted file mode 100644
index b154932eb..000000000
--- a/depends/packages/libgmp.mk
+++ /dev/null
@@ -1,52 +0,0 @@
-package=libgmp
-
-
-ifeq ($(host_os),mingw32)
-$(package)_download_path=https://github.com/radix42/$(package)/archive
-$(package)_file_name=$(package)-$($(package)_git_commit).tar.gz
-$(package)_download_file=$($(package)_git_commit).tar.gz
-$(package)_sha256_hash=67df06ed50f288bd7b1ec6907973684fb7cf1196f2cb368b59d423e42b065e40
-$(package)_git_commit=42ba95387cdfd67399f7aac52fddb8d6e1258ee6
-$(package)_dependencies=
-$(package)_config_opts=--enable-cxx --disable-shared
-else
-#else ifeq ($(build_os),darwin)
-$(package)_version=6.1.1
-$(package)_download_path=https://git.hush.is/attachments
-$(package)_file_name=d613c855-cd92-4efb-b893-658496852019
-$(package)_download_file=d613c855-cd92-4efb-b893-658496852019
-$(package)_sha256_hash=a8109865f2893f1373b0a8ed5ff7429de8db696fc451b1036bd7bdf95bbeffd6
-$(package)_config_opts=--enable-cxx --disable-shared
-$(package)_patches=gcc-15.patch
-endif
-
-#else
-#$(package)_version=6.1.1
-#$(package)_download_path=https://ftp.gnu.org/gnu/gmp
-#$(package)_file_name=gmp-$($(package)_version).tar.bz2
-#$(package)_sha256_hash=a8109865f2893f1373b0a8ed5ff7429de8db696fc451b1036bd7bdf95bbeffd6
-#$(package)_dependencies=
-#$(package)_config_opts=--enable-cxx --disable-shared
-#endif
-
-define $(package)_preprocess_cmds
-  patch -p1 < $($(package)_patch_dir)/gcc-15.patch
-endef
-
-define $(package)_config_cmds
-  $($(package)_autoconf) --host=$(host) --build=$(build)
-endef
-
-ifeq ($(build_os),darwin)
-define $(package)_build_cmds
-	$(MAKE)
-endef
-else
-define $(package)_build_cmds
-  $(MAKE) CPPFLAGS='-fPIC'
-endef
-endif
-
-define $(package)_stage_cmds
-  $(MAKE) DESTDIR=$($(package)_staging_dir) install ; echo '=== staging find for $(package):' ; find $($(package)_staging_dir)
-endef
diff --git a/depends/packages/packages.mk b/depends/packages/packages.mk
index 1324ad7d6..c39adbf30 100644
--- a/depends/packages/packages.mk
+++ b/depends/packages/packages.mk
@@ -1,4 +1,4 @@
-zcash_packages :=  libgmp libsodium utfcpp
+zcash_packages :=  libsodium utfcpp
 rust_crates := \
   crate_aes \
   crate_aesni \
diff --git a/depends/patches/libgmp/gcc-15.patch b/depends/patches/libgmp/gcc-15.patch
deleted file mode 100644
index 6b924f95e..000000000
--- a/depends/patches/libgmp/gcc-15.patch
+++ /dev/null
@@ -1,105 +0,0 @@
-diff --git a/acinclude.m4 b/acinclude.m4
-index bcc6f52..53705e1 100644
---- a/acinclude.m4
-+++ b/acinclude.m4
-@@ -602,24 +602,6 @@ int f ()
- }
- ])
- 
--GMP_PROG_CC_WORKS_PART([$1], [long long reliability test 1],
--[/* The following provokes a segfault in the compiler on powerpc-apple-darwin.
--   Extracted from tests/mpn/t-iord_u.c.  Causes Apple's gcc 3.3 build 1640 and
--   1666 to segfault with e.g., -O2 -mpowerpc64.  */
--
--#if defined (__GNUC__) && ! defined (__cplusplus)
--typedef unsigned long long t1;typedef t1*t2;
--void g(){}
--void h(){}
--static __inline__ t1 e(t2 rp,t2 up,int n,t1 v0)
--{t1 c,x,r;int i;if(v0){c=1;for(i=1;i<n;i++){x=up[i];r=x+1;rp[i]=r;}}return c;}
--void f(){static const struct{t1 n;t1 src[9];t1 want[9];}d[]={{1,{0},{1}},};t1 got[9];int i;
--for(i=0;i<1;i++){if(e(got,got,9,d[i].n)==0)h();g(i,d[i].src,d[i].n,got,d[i].want,9);if(d[i].n)h();}}
--#else
--int dummy;
--#endif
--])
--
- GMP_PROG_CC_WORKS_PART([$1], [long long reliability test 2],
- [/* The following provokes an internal compiler error on powerpc-apple-darwin.
-    Extracted from mpz/cfdiv_q_2exp.c.  Causes Apple's gcc 3.3 build 1640 and
-diff --git a/configure b/configure
-index b9abc1b..04ba451 100755
---- a/configure
-+++ b/configure
-@@ -6382,71 +6382,6 @@ fi
- 
- 
- 
--if test "$gmp_prog_cc_works" = yes; then
--  # remove anything that might look like compiler output to our "||" expression
--  rm -f conftest* a.out b.out a.exe a_out.exe
--  cat >conftest.c <<EOF
--/* The following provokes a segfault in the compiler on powerpc-apple-darwin.
--   Extracted from tests/mpn/t-iord_u.c.  Causes Apple's gcc 3.3 build 1640 and
--   1666 to segfault with e.g., -O2 -mpowerpc64.  */
--
--#if defined (__GNUC__) && ! defined (__cplusplus)
--typedef unsigned long long t1;typedef t1*t2;
--void g(){}
--void h(){}
--static __inline__ t1 e(t2 rp,t2 up,int n,t1 v0)
--{t1 c,x,r;int i;if(v0){c=1;for(i=1;i<n;i++){x=up[i];r=x+1;rp[i]=r;}}return c;}
--void f(){static const struct{t1 n;t1 src[9];t1 want[9];}d[]={{1,{0},{1}},};t1 got[9];int i;
--for(i=0;i<1;i++){if(e(got,got,9,d[i].n)==0)h();g(i,d[i].src,d[i].n,got,d[i].want,9);if(d[i].n)h();}}
--#else
--int dummy;
--#endif
--
--int main () { return 0; }
--EOF
--  echo "Test compile: long long reliability test 1" >&5
--  gmp_compile="$cc $cflags $cppflags conftest.c >&5"
--  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$gmp_compile\""; } >&5
--  (eval $gmp_compile) 2>&5
--  ac_status=$?
--  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
--  test $ac_status = 0; }; then
--    cc_works_part=yes
--    if test "$cross_compiling" = no; then
--      if { ac_try='./a.out || ./b.out || ./a.exe || ./a_out.exe || ./conftest'
--  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
--  (eval $ac_try) 2>&5
--  ac_status=$?
--  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
--  test $ac_status = 0; }; }; then :;
--      else
--        cc_works_part=norun
--      fi
--    fi
--  else
--    cc_works_part=no
--  fi
--  if test "$cc_works_part" != yes; then
--    echo "failed program was:" >&5
--    cat conftest.c >&5
--  fi
--  rm -f conftest* a.out b.out a.exe a_out.exe
--  case $cc_works_part in
--    yes)
--
--      ;;
--    no)
--      gmp_prog_cc_works="no, long long reliability test 1"
--      ;;
--    norun)
--      gmp_prog_cc_works="no, long long reliability test 1, program does not run"
--      ;;
--  esac
--fi
--
--
--
--
- if test "$gmp_prog_cc_works" = yes; then
-   # remove anything that might look like compiler output to our "||" expression
-   rm -f conftest* a.out b.out a.exe a_out.exe