fix(main/qpdf): fix undefined symbols in libqpdf.so

Our undefined symbol finder reports:

    85: 0000000000000000     0 NOTYPE  GLOBAL DEFAULT   UND __aarch64_ldadd8_acq_rel
   104: 0000000000000000     0 NOTYPE  GLOBAL DEFAULT   UND __aarch64_ldadd8_relax

Issue was reported by /u/Economy-Artist593 on reddit.

Ref: android/ndk#1614

packages/qpdf/build.sh

@@ -3,7 +3,7 @@ TERMUX_PKG_DESCRIPTION="Content-Preserving PDF Transformation System"
 TERMUX_PKG_LICENSE="Apache-2.0"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=10.6.3
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL=https://github.com/qpdf/qpdf/releases/download/release-qpdf-$TERMUX_PKG_VERSION/qpdf-$TERMUX_PKG_VERSION.tar.gz
 TERMUX_PKG_SHA256=e8fc23b2a584ea68c963a897515d3eb3129186741dd19d13c86d31fa33493811
 TERMUX_PKG_AUTO_UPDATE=true
@@ -16,4 +16,6 @@ TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-random=/dev/urandom"
 
 termux_step_pre_configure() {
 	./autogen.sh
+
+	LDFLAGS+=" $($CC -print-libgcc-file-name)"
 }